Full-Auto Fast – Product Update – $99 Bump Stock

Editor note: This stock is no longer available due to patent issues that have now been resolved.

Read a review of the Century AK: https://www.gunsamerica.com/blog/the-new-american-made-ak-the-ras47/

Bump Fire for the AR-15: https://www.gunsamerica.com/blog/bumpfire-systems-stock-review-video/

There are multiple ways to get lead down range quickly. The most natural (and most heavily regulated) is the old-fashioned full-auto. These are expensive, require tax stamps and ATF paperwork, and are reasonably scarce. You can go with some of the trigger systems that have assisted resets. Those work, but have a steep learning curve. Then there’s the add-on option, like the Bump Fire System.

The Bump Fire System is easy to install. Right handed and left handed models available.

The Bump Fire System is easy to install. Right handed and left handed models available.

What is Bump Fire? Bump Fire is essentially a stock/grip combo that changes the way recoil works in a rifle platform. The stock is built off of the grip itself. The receiver is joined to the grip and stock by way of a rail that can slide back and forth. This rail allows for a modest amount of travel, about the length of a trigger’s reset. When the gun goes bang, recoil drives the receiver back far enough for the trigger to reset, and then the gun bounces forward–or bumps forward. If you are still holding pressure on your trigger finger, the trigger will connect with your finger on its way back forward and the gun will fire again (just as fast as it bumps). Bump-bump-bump…. The rate of fire is exceptionally fast.

We ran the Bump Fire on a Century RAS-47.

We ran the Bump Fire on a Century RAS-47.

The body mechanics necessary to make this happen are not intuitive, but they’re not hard to learn. You grip the hell out of the grip, and pull the stock into your shoulder. You trigger finger rides along the cut-outs that parallel the trigger guard. With your support hand on the forend, you push the rifle away from you. This brings the trigger into contact with your trigger finger. Push it far enough forward and it will go bang. Hold it forward and it will go bang bang bang… until you let go, or run out of ammo, or the gun jams.

The details

The system (because it is really more than just a stock) comes in right and left handed models. The trigger can still be pulled when the system is in place, though pulling with your non-dominant hand is much more difficult as access to that side of the gun is blocked by the Bump Fire grip’s finger shelf. You can turn the system on and off (so it bounces, or not), remove the stock, and install or remove the whole system at will; there are no permanent changes to the gun, except perhaps the charring inside the handguard from running the gun until your barrel glows.

The stock slides onto this receiver extension.

The stock slides onto this receiver extension.

The stock feels very similar to most AR stocks.

The stock feels very similar to most AR stocks.

Any difficulties?

Usually when we review guns, we expect a near perfect standard of reliability. We’re not using that as the baseline for this review. There is too much potential for the user to screw up–especially during the steep learning curve. And once you have mastered the concept, you should consider the limitations of the platform. How many AK and AR variants are there? If the rifle doesn’t go bang when it is supposed to, do we blame it on the shooter, on the ammo, on the rifle, or on the Bump Fire System itself? Each deserves a look, I think–and you will get the opportunity to ask the questions. That I guarantee.

As you push forward, the trigger comes into contact with your trigger finger.

As you push forward, the trigger comes into contact with your trigger finger.

There isn't much travel in the grip itself, but it is enough to pull the trigger and allow it to reset.

There isn’t much travel in the grip itself, but it is enough to pull the trigger and allow it to reset.

Installation was easy. It takes about two minutes. I had it turned off to begin with, which made it difficult to achieve the full effect. Once I figured out that part, I worked through a couple of magazines at a faltering pace. I would get a couple of rounds through, then something would happen  (either the gun choked, a mag failed to feed, or I screwed up the trigger).

Once I got the hang of it, the speeds picked up and the gun ran much better. As far as I can tell, the Bump Fire System worked exactly as it was designed to. That said, I had very few start-to-finish mag dumps. I put 500 + rounds through in a very short period of time. It heated up the gun to the point that there is now visible charring on the outside of the handguard. The Century yanked rounds free with no problem, even when the gun was super hot–if we pulled the trigger slowly. Once it sped up with the Bump Fire, we had a few failures to extract.

The most prominent issue I experienced had to do (I think) with my management of the bump of the gun. If your form isn’t spot on, the system will hiccup. The trigger won’t hit your finger right, or you won’t have enough forward momentum on the return stroke to get the gun to fire reliably. There is certainly a sweet spot that allows for everything to run just right. The best analogy for this that we could come up with on the spot was “limp wrisitng”–even though that isn’t 100% right. But it felt like limp wristing a GLOCK. It felt like if I wasn’t holding just right, I could cushion the forward momentum of the gun (and weirdly, the bolt) in a way that would keep the bolt from stripping off the next round. The gun would run forward, but not bang, and I’d have to cycle the action again to pick up the next round.

How much do you chalk up to user error? Most of it–but remember what you’re doing. If you run the gun like we did–flat out fast–you will be heating the gun up. That heat causes expansion that, hypothetically, can cause issues. And then there are mag issues to consider. We used Magpul, U.S. Palms, and Thermolds.

And when we’re talking 7.62×39, you need to take into consideration the material construction of cases. Some surplus ammo has a lacquer coating over the steel case. Others coat the steel with a polymer. Both of those should be slick–but both of those materials melt. Run enough of them through a smoking hot chamber, and you will foul up the guts of an AK. The coatings deposit in the chamber, burn out, and make a mess that doesn’t make extraction any more reliable. And, as is typical for cheap ammo, we had a few duds.

This section of rail guides the grip/stock combo's travel.

This section of rail guides the grip/stock combo’s travel.

And you can pull off the stock easily. This lets you move between the Bump Fire and the standard stock in minutes.

And you can pull off the stock easily. This lets you move between the Bump Fire and the standard stock in minutes.

Is this a tactical replacement for full-auto?

If anything, the Bump Fire stock requires more concentration. As you pull in with your trigger hand, and push out with the support hand, you counteract a lot of the forces of recoil and muzzle rise. In order to get the stock to work, you have to be holding the gun securely.

While I wasn’t focused on accuracy during the get-to-know-you phase of the Bump Fire, I am concerned with accuracy. After I’d gotten the hang of it, I put up a 10″ target square on the berm and stood about 15 yards back. I ran a full mag through and then counted the holes.

9 of the 30 rounds hit the 10″ square. I was pleasantly surprised. Consider again that this was my first date with the Bump Fire. From that distance, I could get all 30 in with individual trigger pulls–even running the gun fast. But it wouldn’t be half as fast as it would have been with the Bump Fire. I timed 8 rounds from a fast string on the video. 8 rounds in just under 1 second. That’s 480 rounds a minute. The cyclic rate of an AK is 600 rounds per minute, if you believe common repositories of internet factoids. So that’s pretty close.

I’d like to know what I could do with a full auto AK. And it would have to be an exact copy of this RAS-47, too. But I think this is missing the point. If the tactical advantages of the Bump Fire seem to be limited (at least when we’re talking about Youtube style mag dumps), there is something more to this system–and I think it is more important to understanding the whole concept.

The grip has nice deep grooves.

The grip has nice deep grooves.

Shooting guns is fun.

Absolutely. No doubt about it. 100% Even with the occasional jam, the Bump Fire is awesome. How awesome? So awesome that I’m reverting to the well worn adjectives of my 80s youth. It is that awesome.

I’m hard to impress. I shoot all the time, and get more trigger time behind full autos than most. I know exactly what these systems do, and I’ve been to range events where members of the Bump Fire staff will blow through mags like seasoned experts. So I had assumed I’d be able to evaluate it critically, but my giddiness took over. I couldn’t help it. There is just something about setting a gun on fire with heat from the barrel that I like. It brings out the kid in me.

But don’t take my word for it. Ask a real kid (like the 12 year old bow-hunter who I flushed from the woods–he’s at the end of the video above). We’d gone down to do some work on a farm where we’ll be hunting in a few weeks, and set up there where we do some shooting occasionally. Black powder season hadn’t started yet, and we didn’t think they’re would be anyone bow hunting in the middle of the day–but never underestimate the resolve of a motivated kid. He was still hunting. And when he had his day ruined by sounds that he could only associate with Call-of-Duty, he and his dad came to check it out. After apologizing for running off any remaining deer, I asked if he wanted to shoot it.

Surprise surprise. He did want to shoot it. And the look on his face told me everything I needed to know. And his ability to master shooting the Bump Fire stock on an AK-47 told me everything I needed to know. He’d never shot an AK before. I hate to think how boring his next AK might be.

In the end, I can’t think of a better way to blow through a case of 7.62×39. The Bump Fire System is $99. That’s nothing compared to the ammo bill you’re going to rack up. Still–it is worth it. This is reason enough to buy an AK. The guns are cheap, the ammo is cheap… why not have a dedicated fun gun.

Buy a Bump Fire System: http://www.bumpfiresystems.com/product/ak-47-blk/

Buy a RAS 47 on GunsAmerica: https://www.gunsamerica.com/Search.aspx?T=ras%2047

Read a review of the Century AK: https://www.gunsamerica.com/blog/the-new-american-made-ak-the-ras47/

Bump Fire for the AR-15: https://www.gunsamerica.com/blog/bumpfire-systems-stock-review-video/

The system is really just three pieces that move against each other.

The system is really just three pieces that move against each other.

While it won't match your wooden furniture, it looks good on a black black rifle.

While it won’t match your wooden furniture, it looks good on a black black rifle.

The inside of the stock's slide.

The inside of the stock’s slide.

The cut on the right side allows finger access. The shelf on the left side keeps the finger in place.

The cut on the right side allows finger access. The shelf on the left side keeps the finger in place.

push forward and you the trigger pulls on the finger (which here is not resting on the shelf like it should be).

push forward and you the trigger pulls on the finger (which here is not resting on the shelf like it should be).

This is what it should look like. The finger becomes an extension of the system itself. You actually control the gun with the support hand's movement.

This is what it should look like. The finger becomes an extension of the system itself. You actually control the gun with the support hand’s movement.



Reset. Rinse. Repeat.

Reset. Rinse. Repeat.

The aggressive grip is important for control.

The aggressive grip is important for control.

After working with the bump fire, you may want to show your wife the actual waffle pattern of the bruise so she doesn't think you have been getting hickies from Mick Jagger.

After working with the bump fire, you may want to show your wife the actual waffle pattern of the bruise so she doesn’t think you have been getting hickies from Mick Jagger.

{ 80 comments… add one }
  • Robert May 8, 2018, 9:34 am

    Hi , sks Bump Stock still avable , $99.00

    • S.H. Blannelberry May 8, 2018, 10:25 am

      Shop gunsamerica.com. Search “bump stock.”

  • Kurtis Lynn April 14, 2018, 12:01 am

    I know you can not sell the 99 dollar stocks but can I give you a tip for one or trade something for one? Before they take them away

  • Robert. Burgess March 12, 2018, 7:30 pm

    I would like to purchase the 99.00 bump stock. Please let me know where I can purchase. This product

    • S.H. Blannelberry March 12, 2018, 7:53 pm

      shop GunsAmerica.com. But good luck finding one for $99.

  • Ron barnett February 22, 2018, 2:10 pm

    How can I purchase bump stock from you

  • Ronnie plumlee December 8, 2017, 11:29 pm

    I want to buy two of the 99.00 bump stocks.please let me no when they will be available. Thank you!

  • Sam scott October 22, 2017, 11:08 pm

    I want to order bumpstock for AR. Ooo

  • Derek ross October 13, 2017, 11:57 pm

    Is like to buy one for AK-47 I.O. INC 7.62 X 39 & one for AR-15 5.56/223

  • Buddy Shook October 13, 2017, 7:53 am

    I would like to order a Bump Stock for my 223/5.56 AR15

  • Adrian Clark October 7, 2017, 2:19 am

    I would like to order a bump stock for my 22 cal. AR 15.

  • randall crank October 6, 2017, 9:50 pm

    I would like one for a ar556 ruger how do I go about ordering one?

  • William J Howard October 6, 2017, 6:21 pm

    Would like to buy these things. Please send info on hiw to purchase.

    • John October 7, 2017, 10:16 pm

      How can I buy the 99 dollar bump stock for my ar15

      • richard jepson February 22, 2018, 7:19 pm

        I want a 99 dollar bump stock for a 15 love it

  • Clarence T. Brazzell October 6, 2017, 6:19 am

    I’d like to order the $99 bump stock for AR-15 556 or 308

  • Keith October 5, 2017, 5:17 pm

    I want one

  • Sukhotai October 5, 2017, 11:25 am

    Will this functino on my SKS ??

  • Marcus peter October 4, 2017, 9:54 pm

    Interested in buying a bump stock that’s not too spendy

  • dan October 4, 2017, 6:53 pm

    I bet you’ll have a nasty blister on your finger after using it.

  • Kevin Humphrey October 3, 2017, 10:31 pm

    Do you sell bump stocks that fit my SKS ?

    • greg penner February 20, 2018, 11:10 pm

      how much are they and are they only working one or many different guns at the time.

  • Brandon December 11, 2016, 1:00 am

    how much you charge to install it?

  • Johnny in Yuma October 22, 2016, 1:04 pm

    My stock arrived yesterday and I immediately installed it on my AES-10b. It runs like a raped ape! GOD BLESS TEXAS and bumpfiresystems!

  • Jim December 29, 2015, 10:52 am

    I bought one and didn’t work on my Serbian AK. So, bought a US made AK and same thing, didn’t fit. I think they should specify which AK’s this will actually work on. When I emailed to return mine, I was told they would be coming out with one to fit the Serbian AK’s after the first of the yr. We’ll see.

  • Christopher Towne December 29, 2015, 2:45 am

    hey how about a design for the Hi-point carbine 4595ts, 4095ts, and the 995 ts to fit around a magazine fed grip

  • Howard Bradshaw December 28, 2015, 8:04 pm

    I have an SKS can I mount a bump fire stock on it? Does it take a special model and if so do you make them?

  • Jose flores December 5, 2015, 6:13 pm

    Is it California legal?

    • David December 29, 2015, 10:46 pm

      I’m not sure anything is California legal anymore.

      • Robert Tidwell October 11, 2017, 3:32 pm

        Can we still buy the bump stocks for ar15 right handed? If so, tell me how to order one please.

        • S.H. Blannelberry October 11, 2017, 4:10 pm

          Shop GunsAmerica.com

  • Jon Hembree October 28, 2015, 6:52 pm

    If you’re getting bruising, you’re doing it wrong. I have the original slidefire. Accuracy is not an issue. Saw a yt video shortly after I bought mine that shows a guy put a clip through a very small hole.

  • Mikial October 26, 2015, 6:17 pm

    Bump fire, like trigger adapters for assisted auto fire, is a lot of fun. You can easily convert anything from a Hi-Point carbine to any AR or AK platform to a functional full auto. Lots of rounds down range. But to me it’s a gimmick and just fun. Yup, I have a ,45ACP M4 pattern set up with a trigger adapter and it’s a blast. Uses Glock mags, so no problem getting 30 round mags.

    But . . . is it practical?

    I did 12 years in the Army in combat arms, and 2 1/2 years (3 contracts) in Iraq as a private security operator plus multiple trips to Afghanistan, Kenya, the West Bank, etc.. You use full auto to provide suppressive fire. To keep the other guy’s head down, unless he’s in the open, in which case you cut him to pieces. In my second Iraq contract I was the a vehicle commander on a convoy escort gun truck, with a Lebanese Christian militiaman (he was considered an expat) on the right hand seat, and two Kurdish gunners. The Lebanese and I were armed with semi-auto M4 SBRs, while the Kurds had an AK and a PKM in the back of the truck because we ran trail. The Kurds were told that if they couldn’t hit someone who was shooting at us, they should go get one of the expats and we would hit the bad guy for them.

    My point is . . . full auto and bump or trigger attachments are loads of fun, and even have some real world applications, but in the end, it is marksmanship that takes the day. And yeah . . having said all that, I have busted one helluva lot of full auto caps on everything from 5.56 to .50 cal, and it is a blast!

    • Shane February 23, 2017, 11:16 pm

      Very interested in a bump fire set up on my 45 acp. I have used a bump fire many times on an ar15, but would love to waste some rounds on ly MPA10T. Can you help me out, point me in the right direction? Also looking for a forward grip too. Thanks, much appreciated!

  • Jeffrey Reuter October 26, 2015, 4:06 pm

    This kind of stuff is cool and all that, but we need to be aware that the gun banners are looking at this too. It’s all they need for yet another excuse to ban semi-auto weapons.
    It may not happen this year or for two years or more, but you can bet the next time congress changes hands it’s going to be top priority and devices such as this one will be a great source of propaganda to sway a mostly ignorant public opinion.

  • Gem Gram October 26, 2015, 12:50 pm

    The bumpfire can easily be handled and can easily be made to fire three to four round bursts. As for accuracy at fifty yards on an AR you can put a complete mag into a silhouette target without any difficulty. With some practice it comes down to about a foot circle. Fast three round bursts with practice can be held to a foot circle at 100 yards. Which many AK’s can’t duplicate with slow single shot fire. It is just a matter a few minutes practice with about two or three mags. People unfamiliar with guns or who have never fired a full auto get scared and have a real problem for several mags because of hesitancy and an unnatural habit of having to pull the stock back against the shoulder after it fires the first round. That mystifies me but seems to be a problem with that particular group. Pulling the forend forward directly at the target purposefully to keep it firing actually can make an AR more accurate fast firing than an actual full auto SBR of a cop friend’s. Which surprised the hell out of me. 🙂

    • Billy J. Andrew March 1, 2016, 5:46 pm

      Again someone who thinks an AK is not accurate. You are very wrong. Learn a little and use some common sense, if the AK “can’t duplicate with single fire ” than why is it that so many are currently in use and have been for nearly 70 years? But I guess you will argue how much better the AR platform is when in fact the US is one of very few country’s that uses it in its original form. Maybe the USA needs to swallow it’s pride and dump a problem that has been nothing but that since it’s invention.

      • Scott September 11, 2016, 10:40 am

        The AK platform has been in use for 70 years because they have been made in the many millions by the soviet bloc states, the Chinese & other communist countries. They are cheap to make, especially the stamped versions & can be maintained by peasant farmers not trained in firearms maintainence. In fact you can buy one in the bazars of Mogadishu, Somalia for as little as 15 dollars. They work well under very poor conditions & poor maintainence because the tolerances they are made to are very “forgiving”.
        For these reasons peasant armies can use them & keep them functioning with little training or material to maintain them with. It’s well known that the Afgani’s do little more than soak their shoelaces in motor oil & pull them thru the barrel to “clean” them. I’m sure no one here would consider this acceptable. With this in mind, the loose tolerances also contribute to poor, compared to the AR platform, but not unacceptable accuracy. But by the same token most of the people who are intended use these are also not trained to fire accurately by our standards. The communist bloc countries believe people are expendable on the battlefield. This is evident by the orders given to Soviet commanders during WWII when they did not have enough rifles of any kind to supply their troops. They soldiers were told to attack without weapons, when they could acquire one from a downed friend or foe they were to do so. If they turned to retreat they were to be shot by their own commanders.
        I have both, have fired multiple variants of both & without a doubt the AR is more accurate but not as reliable under battlefield conditions.

  • Mrdan October 26, 2015, 12:36 pm

    I have been shooting for over 57 years now. I know I have an extra AK laying around, so why not hook it up for those special times with a buddy? I love to smile & laugh, while smelling burned powder…

  • Chief October 26, 2015, 12:12 pm

    The airplane line ,”Looks like I picked the wrong week to quit smoking .” Classic >)

  • nick October 26, 2015, 12:12 pm

    Nice but how about you switch the MAIN story to the AR platform and let the RUSSIANS and the TERRORISTS click the link to the AK? Who gives a CRAP about making an AK play faster let alone the fact that ALL you’re doing is showing the TERRORISTS how to kill MORE Americans FASTER with THEIR weapon of Choice! Bet you drive a Yota Truck and your Motorcycle is a RICE BURNER too!

    • Joe October 26, 2015, 12:54 pm

      Your comment is so ridiculous that it pains me to even comment back. Tons of Americans own Ak platform style rifles. That’s why you can go to Walmart an get 7.62×39. The Russians and terrorists you speak of already have full auto rifles. They don’t have the ATF in the Middle East nor does the Russian military for that matter.. Duh. You sound like a liberal says that your showing them how to kill faster. Btw the AK platform in my opinion is much better then The AR. Have fun cleaning or fixing that Jam and make sure you have some lube. You sound like your from backwoods Tennessee.

      • gary November 11, 2015, 12:28 am

        I agree with almost all you said. ALMOST!

        I live in the Tennessee backwoods. I served two tours in Vietnam humping a ruck sack with the 1st Cav.
        I have several AK47s and two AK74s. I would never own an AR any thing. I lost several brothers in Nam account of the Mattel AR16A1.

        As for your backwoods Tennessee remark I assume you are a Yankee or a city boy, probably a damn Yankee.
        If you ever get a wild hair up your ass and want to see what a backwoods Tennessean can do to you, come on down .
        I can assure you that if you did get back home you would show some respect. Most likely tho, you wont be going home.

        • Jim February 4, 2016, 10:36 am

          Gary, I am with you 100%! I am of West Va. extraction which is quite similar in many ways to Tennessee, had a number of Army buddies from Tennessee and having lugged around a Mattel A1 I too share your feelings about the AR!

          Concerning the bump fire system, I have heard that a pistol grip fore arm really aids in using and controlling the system (I haven’t got mine but it’s on my list!) and keeps the hand somewhat removed from the heat build up.

        • Billy J. Andrew March 1, 2016, 5:48 pm

          Well said brother, and thank you for your sacrifice.

    • Vincent October 26, 2015, 1:02 pm

      A thoroughly ignorant response. Terrorists already HAVE full auto. Do you really think ISIS is going to order these by the thousands when they alreay have 12mm Russian machine guns mounted on their trucks and all the full auto AKs they ask for.

      I am not interested in owning full auto but I defend others rights to do what is legal and their attempts to make what is illegal legal again. For instance there is a Bill before congress right now to make suppressors (“silencers” for those of you that are uninformed) legal again. It is ridiculous that by law I HAVE to have muffler on my LAWNMOWER but can not put one on my 10/22.
      This is NOT about what we NEED. That is the gun grabbers line. It is about what we want as law abiding citizens of a semi free (somewhat free) country. If you use those lines you have already drank the kool aid Schummer, Clinton and Feinstein are happy to force down your throat. A very sad state of affairs.
      As for legality: BATFE has already ruled these devises LEGAL!! They were back and forth at first but their own definition of full auto is “more than one shot with one pull of the trigger”. These devises just make that single pull come faster but it is still a SINGLE pull for each shot. LEGAL!! Surprising I know for the current state of BATFE but they actually are abiding by their own laws for this one.

      Put on your big boy panties and leave the legal users of ANY firearm alone.

      • andy October 26, 2015, 1:49 pm

        I paid $500.00 for a M16 in 1975 its worth 20,000+ now.

        • frankspeak October 6, 2017, 8:08 am

          it was a different world before ’86….still have a flyer around here for a “bakers dozen”.of MAC11-9’s for $169 ea!…..

    • nick October 27, 2015, 12:03 pm

      Boy, people are SO touchy! So, I guess that means you DO drive a Yota AND ride Rice.

    • Stephen Koch August 24, 2016, 10:31 pm

      The irony is to use AK platform against the communists in this country. Lol

    • Scott R September 11, 2016, 11:19 am

      I drive a Toyota truck, wouldn’t drive an MC on the roads cause I know too many people killed by careless auto drivers. I’m a union electrician but don’t feed into the union clap trap about having to buy American made, if I did I’d be voting for the same people who want to ban everything from guns to cigarettes (but want pot & heroin legal, go figure??) I live a couple hours outside the greatest evil in the US, Wasington DC. Not really the “backwoods” but all my family is from the “hollars” of WVA so I take exception to your asinine comment about non-city dwellers. I used to own Chevys but got tired of fixing or paying someone to fix them ALL the time. Have had 2 “yota” trucks have only changed oil, brakes, 1 exhaust &2 u joints in 12 years. With the money I saved I have been able to buy multiple firearms, both ARs & AKs & plenty of ammo. I buy what I like & I buy what works. They both have their place in our society. What does not have a place is the smartassed comments about other Americans especially patriotic Americans exercising their constitutional rights. I don’t blame objects for the actions of people, like libs do, so I have no problem with any firearm that’s not pointed at me. Just try to remember that guy you are insulting might be your only friend when the gun grabbers come a’callin. Scott R.

      • JP February 1, 2017, 6:25 pm

        Amen….Good Article and even better Reply from the deep woods of NW Florida…

  • Dave Hicks October 26, 2015, 11:34 am

    Good article. Looks like a fun way to spend shooting. The real issue should be to get the 1934 NFA revoked, then all those full auto legal problems would be less trouble.

  • Joseph October 26, 2015, 8:55 am

    Terril, they do! Kel-tec makes a 9mm that takes a slidefire or bump fire, I don’t remember which. I agree. Being able to deliver a number of relatively lower power ammunition quickly makes for a safer, but effective, house or riot gun. And no bruising.

  • Bill October 26, 2015, 8:45 am

    This sort of thing is terrible news for those of us who actually care about keeping the gun grabbers off our backs. Brag about coming up with a way around NFA ’34? Doesn’t matter if this assertion is actually true or not, it is guaranteed to incite the paranoia of the other side. The result of that? Some more idiotic gun laws. I don’t even have to ask what Bloomberg, Schumer, the Bradyites or Feinstein would say about THIS. Not to mention the obvious fact that nobody needs this sort of thing anyway. Don’t ARs and AKs chew up ammo fast enough as it is? This is literally a brainless invention, one that serves no useful purpose but can lead to irreparable damage.

    • Administrator October 26, 2015, 9:07 am

      This product has been around for several years Bill. Stop being such a bootlicker.

    • Chuck October 26, 2015, 9:59 am

      Hey Bill, does your car go faster then the speed limit? Why should it?

      • Rigo October 26, 2015, 11:25 am


    • Patrick October 26, 2015, 11:10 am

      I for one need it. I already have one for my AR and it’s a ton of fun. I totally disagree with you. https://youtu.be/u_K2oYVNcJk

    • fred October 26, 2015, 1:18 pm

      I certainly agree.The shooter appears not to know how hot a barrel gets in full auto and the having a camo faced young kid try to pull the bolt back was a big mistake and then let him fire the weapon was a worse mistake. Ya know, this kind of advertisement is very bad for those who want to keep a low profile with this administration. Drop the advertisement. I hope the NRA sees the full potential and possible ramification/blowback. Remenber the other youngster firing an UZI in full auto. This is definitely the wrong way to promote in this crazy world. Just my opinion.

    • Mocatz October 28, 2015, 6:56 pm

      Are you serious? There is NOTHING you can do to stop the gun grabbers attempts to grab your guns. If all we had were muzzleloaders they would be trying to grab those.

      • Scott R November 1, 2015, 5:56 pm

        That’s what they did in 1776 at Concord and Lexington. Lemmee know how that worked out.

    • Jim December 28, 2015, 7:53 am

      Nobody NEEDS this kind of thing? Since when is what I need anyone’s business? I don’t need a lot of the stuff I have. I don’t need a vehicle that goes over 80mph. I don’t need 25+ guns. I don’t need thousands of rounds of ammo. I also don’t need the government or anyone else making decisions about what I need. I WANT things and in a free society that is all that matters.
      The 1934 NFA was a tax bill. Congress recognized the second amendment forbid them from infringing on our rights. It may have been legal to tax certain types of weapons out of the hands of the public but it was an underhanded way of going about it.
      The 1968 gun control act was and is unconstitutional, period. The 1986 Firearm Owners Protection Act was also unconstitutional and its very questionable if it even passed congress before it was sent to the president to be signed into law. If you watch the video of that bill in debate it appears to have failed by a large margin.
      Gun grabbers and pound sand for all I care. Every time a new gun law is mentioned our side needs to demand that current laws be repealed. They keep saying we need to discuss new laws. I say we need to repeal all the unconstitutional garbage that has passed already first, then we can discuss your ideas and reject them.
      Bump fire stocks are a nifty idea for those who want to experience full auto type operations without the hassle of buying a NFA weapon. I can accomplish the same thing with a shoe string or a belt loop. Banning the stock won’t stop someone from bump firing a gun.

      • Mikial December 28, 2015, 6:14 pm

        Damn straight! This si supposed to be a free country. Screw anyone telling me what I “need.”

    • kevin larson December 28, 2015, 1:25 pm

      Are you one of the mindless lefties that don’t need any reason to screw with gun rights.
      doesn’t all shooting no matter at what rate or caliber wear out a barrel??
      I would think that if a gun owner knew that and wanted too anyway so be it!!

    • Flightchecker August 24, 2016, 10:41 pm

      Why so afraid of the coming conflict. “They” are angling for a fight, don’t puss out. Sack up and get with the program!

    • frankspeak October 6, 2017, 8:12 am

      prophetic post….

  • Scott October 26, 2015, 8:45 am

    Stop being ignorant, the bump fire system is the fun inexpensive way to shoot auto but not being auto. If you got the ammo, and don’t care about follow up shots or hitting the target 1inch moa go for it. It’s all about enjoying shooting. Resale value……really your worried about that……sounds like you have other problems if your pinching pennies for ammo.

  • Joe October 26, 2015, 8:34 am

    Yeah, see what happens when you try this function at 99% of your local gun range..

    • Charley June 9, 2016, 12:08 pm

      My local gun range is the creek bank in my field.

  • Ron October 26, 2015, 7:05 am

    First of all, I have never shot a bump fire or full auto. I do shoot my share of semi auto AR’s and SKS however. After reading the article and watching the video, my conclusion that the wow factor is far greater than the practicality….definitely just a fun gun. Overheated guns and wasted ammo! All that said, I would love to have an AR with 3 round burst capability along with the standard semi auto! As shown in this video, if you don’t hit with the first round of a burst….the others are sure to miss too. Why piss away a full mag when you could save the remainder of the mag for follow up shots? And how many full auto mags will that gun survive before seizing the bolt, bending the piston rod, or stripping the rifling? I sure wouldn’t want to buy a used gun knowing it had one of these stocks ran on it!

    • gabo October 26, 2015, 9:14 am

      well said, and accurate. it is this inaccuracy with subsequent rounds and rate of ammo depletion that made the military finally consider doing away w/ full auto, having 3-shot burst and semi-auto to choose from. my sig 556 will fire flawlessly, as fast as I can squeeze and reset, faster than I can accurately acquire targets,
      this stock in the wrong hands is a time bomb waiting to explode. it will be interesting to see ATF reaction and reasoning on this.

      • Kent October 26, 2015, 12:04 pm

        Having fired 1000’s of rounds with Slidefire and Bumpfire it should be mentioned that either stock may be fired with 3 round burst by pushing the foregrip forward and immediately letting it go. The result will normally be a 3 round burst.

      • SLS October 3, 2017, 8:53 pm

        01/01/17, Boom! I shared your prescience and spoke against these devices, as well as huge capacity magazines as being only useful for harming the innocent.

  • Brian October 26, 2015, 4:40 am

    You could always have it hydro-diped to match you weapon.

  • Terril Hebert October 24, 2015, 7:11 pm

    You got everything I dont. Fast firing firearms and humor. Great review. I think 99 bucks beats the artificially high prices for true full auto weapons. Now… if only they would have such a stock for the pistol caliber carbines…

    • Stu E. October 26, 2015, 8:51 pm

      I have one of the early models from Slide Fire that I put on my 9mm Just Right Carbine, which works fine. Don’t keep it on, because it is, at least for me, just for the fun. Now that somebody is making one for $99, I think I want one for my AK.

      • Mikial December 28, 2015, 6:12 pm

        I have a Just Right .45 carbine. I’ve tried a trigger mounted rapid fire adapter and it was pretty disappointing. Was it much trouble mounting the Bump Fire stock on your carbine?

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