A Non-NFA 14” Shotgun? The Mossberg Shockwave 12 Ga. – Full Review.

Authors Gun Reviews Jon Hodoway Pump Shotguns

Editors Note: When we first ran this review, the Mossberg Non-NFA Shotgun was brand new and they were not readily available. This is really an interesting concept and it’s worth a second look.

For more information, visit: https://www.mossberg.com/product/590-shockwave-6-shot-50659/.

To purchase a Mossberg Shockwave on GunsAmerica.com, click this link: https://www.gunsamerica.com/Search.aspx?T=Mossberg%20590.

Mossberg has managed to disrupt the shotgun market with the introduction of a gun that isn’t even a shotgun! The Shockwave is a 14-inch pump 12-gauge gun, measuring in at just under 26½ inches long. Get this: You can pick it up today, from your local dealer, without any extra government paperwork or waiting on the BATFE to approve the transfer. How can this be?

A Non-NFA 14” Shotgun? The Mossberg Shockwave 12 Ga. – Full Review.

The new Mossberg Shockwave gives you a street-legal 14-inch barreled 590 for only $455 MSRP. Image courtesy of Mossberg.

When Dumb Rules Give You a Great Gun!

Disclaimer: I am not an attorney, and you should not rely on my advice to make legal decisions. In fact, recommend that you don’t even read this!

Here are the rules in question:

  1. All shotguns are intended to be fired from the shoulder.
  2. All shotguns must have an 18-inch barrel. If the gun has a stock and a barrel shorter than 18 inches, it is classified as a “Short Barreled Shotgun” (SBS), requiring a $200.00 transfer tax.
  3. If the shotgun has a pistol grip and is less than 26 inches in overall length, it is considered an “Any Other Weapon” (AOW). Good news: AOWs only require a $5 transfer tax.
  4. The Shockwave is created as follows. Start with a shotgun that has NEVER had a stock attached. Add a pistol grip, and the gun is now considered a PGO (Pistol Grip Only). It is NOT a shotgun, as it is not intended to be fired from the shoulder. Next, add a 14-inch barrel so the overall length is just under 26½ inches. The length being greater than 26 inches disqualifies the gun from being an AOW. So, the BATFE declares that you now have a “Non-NFA Firearm.”
  5. The Shockwave is not a shotgun, nor a handgun, but a firearm. It requires no special paperwork other than the 4473, and the buyer must be 21 years old. Some states may have restrictions on the Shockwave, so check your state and local laws!
A Non-NFA 14” Shotgun? The Mossberg Shockwave 12 Ga. – Full Review.

The Shockwave is equipped with a Raptor curved pistol grip as well as having a hand-retention strap on the fore end, which is a good idea on a firearm this short.


The Shockwave is certainly a new piece of hardware that is very rewarding to inspect. The gun uses twin action bars, positive steel-to-steel lock-up, anti-jam elevator, dual extractors, and Mossberg’s top-mounted safety. The 590 Shockwave employs a lightweight, anodized aluminum receiver, and features a convenient clean-out tube magazine cap. The barrel sports a bead front sight.

The Shockwave gets its name from Shockwave Technologies, who created the Raptor bird’s head-style polymer pistol grip, which is uniquely shaped and provides a firm grip that minimizes felt recoil. Shockwave Technologies also supplies the Raptor Strap for the fore end of the gun. This keeps your hand on the fore end and away from the muzzle.

A Non-NFA 14” Shotgun? The Mossberg Shockwave 12 Ga. – Full Review.

The Mosssberg Shockwave (right) is shown here next to the author’s Ithaca 37 AOW.


  • Chambering: 12 Ga., 3-inch chamber
  • Barrel: 14 inches
  • OA Length: 26.37 inches
  • Weight: 5.25 pounds
  • Grip: Shockwave Raptor grip
  • Sights: Bead front
  • Action: Pump action
  • Finish: Matte blued
  • Capacity: 5+1
  • MSRP: $455

On the Range

While making plans for the range, I had one question at the forefront of my mind: Is the Shockwave a toy, or does it have a true purpose other than generating smiles? In the interest of exploring this question, I selected several different kinds of ammunition. I searched every store in the area for The Aguila mini shells, as those little 1.75-inch shells would double the weapon’s capacity. Unfortunately, testing the Aguilas was not in the cards for me, as every retailer was out of stock. You can get an OpSol Mini-Clip for $15 that fits in the gun and ensures rock-solid function with those little shorty shells.

A Non-NFA 14” Shotgun? The Mossberg Shockwave 12 Ga. – Full Review.

The Mossberg Shockwave (center) is shown below an 18-inch barelled Remington 870 and above the AOW Ithaca 37 for size comparison.

Upon arriving at the range, I was excited to get the party started with the Shockwave. I loaded five light field loads into the tube magazine and held the little 590 as recommended. One hand went in the Raptor Strap on the fore end, and the other hand on the Raptor bird’s head grip, with the Shockwave held at waist level and the grip pressed to my side. After settling into the grip, I racked the first round into the chamber, pushed the safety off with my thumb, and let loose the first round. Wow! No pain, and the recoil was easy to control. I have an Ithaca Model 37 12 ga. AOW with a 10” barrel and pistol grip, and that sucker can be painful to shoot. The 590 is a sweetheart when compared to my Ithaca 37, even when working with slugs and buckshot. I will confess that I did not shoot any 3” magnum rounds out of the Shockwave, but only because I am not a glutton for punishment. Hey, call me a quitter or something less PC, but I don’t like them out of any shotgun.


A Non-NFA 14” Shotgun? The Mossberg Shockwave 12 Ga. – Full Review.

The Raptor grip is curved and proved to help dampen the recoil of the 12 ga.



A Non-NFA 14” Shotgun? The Mossberg Shockwave 12 Ga. – Full Review.

The tubular magazine is capped off with a threaded and removable end cap.


A Non-NFA 14” Shotgun? The Mossberg Shockwave 12 Ga. – Full Review.

The author was able to get his shots from the Shockwave easily centered on the target while testing at the range.

One clear advantage of the Mossberg pump-action that should be noted is that the ambidextrous top-mounted safety is easily reached and operated by left or right-handed shooters.

Time for Round Two. I reloaded with six rounds this time, and decided to see what kind of speed the demure gun could produce. I compared it to my Vang Comp 870, and found that the winner was always determined by who was running each gun. There was no clear platform-based winner; this was a dead heat.

The Shockwave is a close-range weapon without a doubt, so I wanted to test for a reasonable amount of control. This test was conducted with a standard IPSC target, while firing rifled slugs. I started out at 3 yards and fired one round, then moved back one full step. I ended the 6-round test at 7 yards, and all of the rounds had struck within the A-Zone.

At the end of the day, I was left with the conclusion that the Shockwave is a real gun, and not just a grin machine, although it does bring the smiles uninterrupted. So, where does this gun shine? I would point out that the inspiration for this gun comes from the U.S Marshals service, who developed a very similar gun to be easy to carry while delivering a volume of fire disproportionate to its size. I have used my Model 37 to breach doors, but it’s primarily a snake-killing machine. My little Ithaca has been a great comfort to have within reach when I’m unsure of others’ intentions. The Shockwave can perform these roles quite well, but without a Federal tax stamp, and for less money!

Final Thoughts

I really thought that the Shockwave was just a pleasant range distraction, but I was wrong. This is a gun for serious purposes. I have tried guns that fit through the same aspect of firearms law as this gun, and found them lacking. They were finicky, heavy and hard to use, if you could get them to work at all, with a price well over twice that of the Mossberg.

A Non-NFA 14” Shotgun? The Mossberg Shockwave 12 Ga. – Full Review.

If you are looking for a lot of power in a small package without all the legal complexities of an AOW or SBS, the Mossberg Shockwave definitely deserves a close look.

Mossberg has several advantages over all others that I have seen thus far.  They are factory-built on virgin receivers, so there is no ambiguity as to their status. They are on a proven platform that doesn’t suffer from reliability issues. They are not ammunition sensitive with anything that I tested. Finally, their price is more than fair, and will come well under the MSRP of $455.00, as supply should be abundant with Mossberg’s production capabilities. If you are in the market for a gun of this kind, the Mossberg Shockwave is certainly worthy of your consideration.

For more information, visit: https://www.mossberg.com/product/590-shockwave-6-shot-50659/.

To purchase a Mossberg Shockwave on GunsAmerica.com, click this link: https://www.gunsamerica.com/Search.aspx?T=Mossberg%20590.

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  • Lonewolf January 1, 2021, 12:03 pm

    I have to agree with some of these comments. The Mossberg 590 Shockwave has been for sometime now. That being said. This is a well written article. Thank you for an interesting read.

  • john R December 7, 2020, 3:35 am

    I live in Alaska and do some river floats. I have variously brought a Smith 44, a Remington 870 and a 45/70 for bears. Never needed them but… I am going to get a shockwave. looks like a light compact powerful choice. Hard to swing a long gun in a small tent. A friend had a bear start to tear up his tent with 2 of them in it. He shot him with a 44 and the bear ran off but the 44 didn’t seem to have much affect.

  • SIGO April 21, 2020, 11:19 am

    We discovered this “Firearm” by accident while looking for a home protection shotgun for my Mrs. She won’t touch my Mossberg 500 12ga and she doesn’t like my PC Carbine or AR. She’s little so we were looking at bantam size options in all brands. She refused to get one in 20ga, so 410 was the limiting factor. She fell in love with 5he Shockwave in 410 and honestly, after shooting it, I like it too. At 10 ft, with 2 3/4” self defense rounds, it makes a beautiful 6-8” group that would ruin anyone’s day. With a bit of practice, she was laying that bugger at center mass regularly. She love the shockwave and loves to shoot it, so I love it too.

  • Steve in Detroit April 20, 2020, 9:59 am

    Just say you prefer Mossberg’s over 870 types. I do too.

  • Wade April 20, 2020, 8:21 am

    For the next review could we do the model 1873? This was clearly covered a couple years ago and what more did we get out of this article? Tom McHale I believe covered this well enough two years ago we don’t need reruns

  • ARNOLDO AVELAR April 20, 2020, 5:40 am

    I bought a shockwave almost 2 years ago and I enjoy it as a home defense. Really impressed when I shot it at the range. Very easy to clean and I think it looks great.I love mossberg there products are superior and well priced.

  • william broome April 19, 2020, 5:49 pm

    wondering if strap fore grip would fit on a 500 ?

    • jeff April 20, 2020, 11:45 am

      yes it does as i got one for my 500 as well

  • Ron Moers February 22, 2020, 7:18 pm

    Mossberg, etal,
    Just bought a new 590 12 ga w/ Raptor grip.
    I’m confused by the Fed paperwork. Do I have to pay $5 or $200 (or anything) for a tax fee if I want to add a pistol grip. What if I want to add a stock and grip for $125? The Feds & bureaucracy make this crap so confusing It’s difficult to get a concise answer. I would appreciate any help.

    • DIEL April 20, 2020, 8:51 am

      Yes, it is confusing. You can not add a stock without applying for a short barrel shotgun (SBS) form 1 application and paying the $200. I don’t believe that a non licensing manufacturer can form 1 build and any other weapon (AOW) which is the $5 tax you described.

    • Old Beast April 20, 2020, 9:44 am

      If you put a pistol grip on it then it turns into a short barreled shotgun (SBS) and a $200 tax stamp, but if you put one of the pistol grips with a brace attached then you are fine the way it is. The pistol grip with brace would be the way to go I think anyways, you can use the brace as a short stock. Shop around for one, they are around the $200 price range, which is about the same as a tax stamp but without the hassles and if you ever need to sell it then you can sell it to anyone or any dealer. If you go the tax stamp route then selling becomes a nightmare, because whoever you sell to has to go through the tax stamp process also! Something to think about.

  • CM Dutch January 16, 2019, 10:34 pm

    Shooting Blackpowder shotshells after dark cool to watch but blinds the shooter after two rounds. Love mine and the recoil is not as bad as imagined.

  • Mark August 24, 2018, 10:02 pm

    Welcome to Bizarro Land where the length of a weapon makes a difference when it comes to the law. Not what the weapon is USED for. Total moral relativistic BS. What DIFFERENCE should it have EVER made what length a barrel is or how many rounds it fires in a given amount of time? When are we going to wake up and REFUSE to convict ANYONE for a pretend crime? A real crime has a victim. Oh, and BTW..AOW? NFA weapon? What about SHALL NOT BE INFRINGED?

  • tom June 4, 2018, 8:31 am

    What is the ‘official’ TYPE of firearm to be listed in question 27 of the 4473 form?

    I have heard “shotgun”, “firearm”, “PGO”, “AOW”, etc.

    Per ATF it’s not a shotgun or an AOW by definition, but what is it to be listed as “per paperwork”?

    I can see this potentially biting people in the butt down the road when they have ATF audit their paperwork. Especially if someone really not familiar puts it as a pistol.

    Great little ‘pistol-grip-equipped hurler of projectiles by explosive means through a less-than-18-inch smoothbore barrel”. Have handled the 20ga and think it would be great, esp. small of stature/female apartment dweller with limited firearms experience. Still need to practice, I know….

    • Ralph F Turner Jr April 20, 2020, 10:49 am

      I believe it is considered an “Other”on the 4473 Ralphie T

      • Greg April 20, 2020, 10:18 pm

        The Shockwave is simply considered a, “firearm” in the eyes of the BATF. Love my Shockwave and with the OpSol adapter, it cycles the mini shells just fine, giving you a higher round count. Inserting and removing the adapter takes all of 5 seconds or less. And these days they offer it with wood furniture.

    • nomen nescio April 21, 2020, 5:38 pm

      In Michigan I believe they are considered by state law to be “handguns” and require a state pistol purchase permit.

  • Jason bailey May 8, 2018, 8:11 pm

    I just bought one and i shot it and it wont pump its stuck what do i do

    • S.H. Blannelberry May 9, 2018, 9:03 am

      Contact Mossberg.

    • nomen nescio April 21, 2020, 5:39 pm

      Are you pressing the slide latch all the way in? The bolt is locked in place when the hammer is cocked and you must press in the slide latch in order to unlock the bolt and pump it.

  • Chris Butler December 4, 2017, 9:51 am

    The U.S. Marshal witness protection shotgun is based on a Remington 870 not a Mossberg 590.

  • John Donovan December 4, 2017, 7:40 am

    My wife loves this gun. The top of the barrel is threaded for a short picatinny rail and we purchased a new rail for $10 at a gun show that fit perfectly and allows us to use a spare red laser sight that I had in the drawer. That red dot allows us to consistently blow the center out of a target at 10 yards.

  • Charles December 4, 2017, 7:25 am

    simply illegal to possess in Ohio.
    I queried my FFL about transferring a 20ga, and he replied ” no go” after perusing the different links I sent him (Buckeye Firearms Assoc. page & more). And it’s not like he is thin-skinned (he is an SOT holder),
    I am also an NFA collector, and would like to add one of these to the collection but haven’t determined how to get an AOW designation & stamp so that I can fend off the LEOs touting a stupid-as-*$&K state law.

  • Frank December 4, 2017, 6:52 am

    My first thought was this would be a great home defense gun… in 20 gauge. Wouldn’t even mind seeing a .410 — perfect for ladies, better than a pistol! Racking a pump is just a sound no one on the receiving end likes to hear, less likely to have to shoot. There are 12 to 20 adapters that would work for now though.

    • Frank December 4, 2017, 11:01 am

      They just introduced it in 20 ga. You can also get an action adaptor to shoot mini-12 cartridges for the guns chambered in 12 ga.

    • nomen nescio April 21, 2020, 5:40 pm

      Maybe use low-recoil 12 gauge buckshot? It’s unlikely that the bad guy on the receiving end will be able to tell the difference.

  • Jeff October 13, 2017, 1:56 pm

    OK, I clearly see the home defense use of this item.
    How would it would go with small game bird hunting? I have a Mossberg 500 that came with the two-barrel package, but I’d rather not start adding an extra shotgun to a small collection. I used to successfully hunt rabbit with a .22 pistol, so why not a very short 500 for pheasant? If it’s easier on apparent recoil with low brass bird shot, I don’t see why this version couldn’t take down small game in short outings. I am 70 years old with torn-up rotator cuffs that can’t be repaired, and long guns really aren’t reasonable for my use in the future. A short shotgun for short birds?

    • mtman2 December 4, 2017, 4:05 am

      With the short shells probly close to zero shooting strain.
      Hey with Ruffed Grouse in heavy cover its always been from the hip shots and same with rabbits= the Shockwave would be very fast and effective w/out needing to shoulder the gun. Lighter too…

  • John August 30, 2017, 7:42 am

    Got one from Van’s deer processing Brandon MS. Have not shot it. Filled it up with 2.75 inch #4 buck but then switched em out with 2.75 inch #6s thinking I’ll get a better (larger) spread, within the confines of my small house??? Any way; when I get up the nerve maybe I will go out in the pasture with some skeet loads and hip shoot me some dragonflies!?!?! What a hoot! What TRUE GUN NUT don’t want a short 12 gauge FIREARM??? By the way; I bought the OPSol Mini-Clip™ on line from Amazon for my NeW Mossberg Shockwave; Now all I need is some of the Aguila Minishell Ammunition in the 12 Gauge 1-3/4″ Buckshot #1 or #4, which has apparently disappeared from the face of the earth “SOLD OUT” no back order!?!?!?
    I blame the September 2017 NRA Shooting Illustrated Cover story “Mossberg Shockwave: Game Changer” for this 1st world prob. 😉
    Have Ya’LL heard any Thang???
    Semper fi
    John R Blair Jr (Military Police USMC ’77-’81)
    Utica, MS

    • nomen nescio April 21, 2020, 5:52 pm

      I’d stick with the #4 buckshot. Most of them stay in a man’s body and the ones that exit have spent most of their energy and do not go much further. Small birdshot pellets do not consistently carry deep enough into a human body to reach vital structures. Not saying they never can, but that it’s not consistent, and that buckshot is a better bet for that role.

  • JOHN SALLIER August 17, 2017, 2:56 pm

    Shot my new Mossberg Shockwave for the first time today, the inside range will only let you shoot slugs due to the scatter, they said. I have shot many shotguns before, but don\’t shoot any, without full stocks, with slugs in them. The ammo I shot was Federal Premium 12 ga. 2 3/4 inch 1 oz. Maximum Truball Rifled Slug HP. All I can say is , \”DAMN\” . and I won\’t be shooting them anymore from the Shockwave. I sure wouldn\’t want to be on the receiving end !!! For any home defence, in the future, I will be loading this firearm with low brass rounds for sure.

  • JOHN SALLIER August 17, 2017, 2:56 pm

    Shot my new Mossberg Shockwave for the first time today, the inside range will only let you shoot slugs due to the scatter, they said. I have shot many shotguns before, but don’t shoot any, without full stocks, with slugs in them. The ammo I shot was Federal Premium 12 ga. 2 3/4 inch 1 oz. Maximum Truball Rifled Slug HP. All I can say is , “DAMN” . and I won’t be shooting them anymore from the Shockwave. I sure wouldn’t want to be on the receiving end !!! For any home defence, in the future, I will be loading this firearm with low brass rounds for sure.

  • Bob Bonillas May 29, 2017, 7:08 am

    A Marine version would be handy in you boat in case you have to shoot Jaws! I agree with the others; a 20 guage is a good idea.

    • Frank December 4, 2017, 11:52 am

      Hi, They make a Marine version and the 20 ga Shockwave just came out.

  • Joel Davila Jr May 4, 2017, 9:42 am

    Are these legal in Texas?

    • tom June 4, 2018, 8:16 am

      They are legal in Texas.

  • scott March 24, 2017, 3:31 pm

    MossbergCorp will there be a 20 gauge version on the horizon?.I’m sure if I buy the 12 your company will introduce the 20.


    • William April 20, 2020, 11:44 am

      I’m with Scott: Why not offer a 20-gauge version, Mossberg? Much less uncomfortable to shoot, and really just as effective a defensive weapon.
      (Anybody who wants to poo-poo the 20 gauge should stop and think how a 20-gauge slug compares to your puny .45 ACP bullet for making a dramatic entrance wound)

  • Robert Smith March 13, 2017, 6:39 pm

    The “In Range” You Tube channel had an interesting recent video where Karl and Ian did some side-by-side testing with a pistol-grip pump gun vs. two other shotguns with conventional shoulder stocks. The tests clearly showed a shotgun needs to be braced on the shoulder for optimal defensive shooting, even at close range. They found the shoulder stock also has a distinct advantage for hip-firing in providing an additional brace point. The pistol grip does make it more concealable, but a 26″ gun is hardly concealable anyway. I’m not saying the Shockwave is a bad product, just that it might not be as effective as some might think.

  • Batman March 13, 2017, 6:31 pm

    “If it walks like a duck and quacks like a duck” ITS A SHOTGUN!

  • ES March 13, 2017, 3:19 pm

    Kudos for Mossberg for attaching the documentation from the US Justice Dept, BATFE. I will be purchasing two of these for our home; one for me and one for the lady of the house. “A man’s got to know his limitations” the great Clint Eastwood. With this little beauty one could have a blast at the range… had to say it.

  • Robert Blankenship March 13, 2017, 12:39 pm

    Gangs will love it.

    • Gene March 13, 2017, 12:59 pm

      More foolishness typical of anti-gun types. Why on earth would “gangs” go to a legitimate dealer and fill out the paperwork when they can take a stolen shotgun and hack off the barrel and stock. Do you really think they worry about OAL and the definition of an NFA firearm?

      • loupgarous March 13, 2017, 2:46 pm

        Once again, down the rabbit hole with Alice, chasing the issue of “gangs will love it”!
        The problem with Federal laws in general is their increasing tendency to restrict 330 million Americans’ freedoms because a few thousand people nationwide will abuse them. That’s wildly unacceptable thinking, and it cost the party which has most often been associated with it an election. We’re tired of the bullshit.

        • Bob July 3, 2017, 12:56 am

          Better make that a few hundred, and that’s counting the wannabee’s. Those who will actually abuse them are likely no more than a few dozen. Those are the ones who make headlines. For every one that actually commits a nefarious deed, thousands prepare themselves for their fantasies. There are probably a few million who have a hacksaw ready just because its use is illegal, and because they can.

      • Roger E. Reeves sr. March 13, 2017, 4:00 pm

        When is everybody including law enforcement going to realize crooks, etc will never buy a legit Firearm? Love the new Moseburg handgun “(fefence) weapon. I have a simular gun l use to carry horseback. Now just take a 20” shotgun.l feel sure this new firearm will sell for home, vehicle defence.will order a few asap. Thanks, gunslinger

      • chuck March 16, 2017, 4:25 pm

        Amen Gene

    • LVE4GOD March 13, 2017, 1:44 pm

      Yep, they love all guns, knives too. Should we ban them all?

    • Mikial March 13, 2017, 6:20 pm

      I doubt gangers would even care. After all, they can just cut down a stolen shotgun, or one bought in a dingy apartment along with a few ounces of coke, and use it on all the unarmed citizens who inhabit Liberal run cities where they are not allowed to defend themselves.

    • CW May 31, 2017, 8:17 am

      More importantly, gangs will FEAR it!

    • Ray November 25, 2018, 10:29 pm

      What an absolute silly statement. I mean like seriously? Did someone really write that?

    • Ej harbet April 21, 2020, 5:24 pm

      Look kids! Fuddley macbuzzkill stopped by to crap in the beanie weinies of freedom! May the lice of 100 mangy monkeys infest your pubes!

  • LVE4GOD March 13, 2017, 12:08 pm

    I’m a gun noob, I’ve had my CC permit a few years but haven’t bought anything yet. I would never have imagined it could happen, but this review has got me considering something other than (or rather, in addition to) a revolver or pistol! Obviously not for CCW purposes. 😊 But given the price, and Uncle Joe Biden’s suggestion that I protect my home (not to mention my car!) with a shotgun, this Mossberg is mighty appealing.

    • seroren March 14, 2017, 1:24 am

      Now yer thinking….

    • Ej harbet April 21, 2020, 5:37 pm

      Train your mind,try guns at a rental range to select what is best for your needs and defense situations.dont listen to a blithering idiot who knows zero about defense weapons and tactics.

  • Mmr_Bruce March 13, 2017, 11:40 am

    Mossberg should be embarrassed for seemingly taking credit for this innovation. Mossberg didn’t create this, they replicated it from another, smaller shotgun manufacturer. And this has been around for at least 2 years now, it’s not new by any means.

    • LVE4GOD March 13, 2017, 1:53 pm

      Actually, if you look at their website, they don’t really take credit for the innovation (based on the product information page). The reviewer MIGHT have implied that it was innovative, but from what I recall he seemed more excited about its non-NFA non-transfer-fee status as a “firearm” — whatever the case, there doesn’t seem to be any reason to believe Mossberg took credit. Also, “new” is a relative concept. . .especially considering how long shotguns (or our country) have been around. 🙂

    • MossbergCorp March 13, 2017, 3:10 pm

      To clear up a misapprehension: We make no claims to inventing the grip; nor are we taking the credit for the concept. We are openly working with Shockwave Technologies who supplies the Raptor grip to us –as is evidenced by the name we gave it, the “590 Shockwave.” We simply saw an opportunity to provide a popular configuration out-of-the-box. We have done similar collaborating with ATI and Magpul to produce the 500 ATI Tactical and our 590A1 Magpul models which use their stocks and forends/accessories. Thank you for allowing us to clarify!

      • Mikial March 13, 2017, 6:26 pm

        And we very much appreciate Mossberg for building this great gun. I still use my Mossberg 500 that I bought 40 years ago as my first shotgun and it has never let me down. Not once. I am going to pick one of these new 590 Shockwaves up at my first opportunity. In my own humble opinion, Mossberg is a first class company that offers great products at great prices and doesn’t try to take advantage of anyone. Thank you for the years of enjoyment I have had with your fine products.

      • Thomas J. Bedsole May 8, 2017, 3:00 pm

        Now just put the screws holding the strap on the outside ends of the strap……No scrapes or sore spots on your hand from the hard melted strap material or screw heads……I know from experience……

    • Wraith3845 May 8, 2017, 6:33 am

      2 years huh? This grip style can be found on flint lock fire arms dating back 400 years or so. Are we going to bash this (smaller) shotgun manufacturer for taking credit for a 400+ year old design?

  • diftet March 13, 2017, 10:43 am

    Any chance a .20 gauge is in the works?

    • American USMC March 13, 2017, 1:28 pm

      I want one ! A 20 gauge would be great.

      • Deplorable Ralphwylie March 13, 2017, 5:36 pm

        It’s been done, kinda. Go to “Cobray” or “Leinad” on the interweb. Get a Double Barrel in .410/45 with an overall length of 14″. A wicked little MFer! Totally illegal most places, but WGAF?

      • Bob July 3, 2017, 1:08 am

        I’d like to see a 20 in a narrower, smaller profile. I believe Palladin was using Mossberg actions, but also made a very petite O/U in 12 or 20 with your choice of either a 10″ or 14″ barrel. Hey, as long as you’re not shooting migratory or upland game with the thing, let’s hear it for the mighty 4-bore double! Squeeze the trigger, and I’ll guarantee SOMEthing is gonna be hurting! And if you load with blackpowder, a couple of shots will probably clear most fields of battle anyway.

  • Cody March 13, 2017, 10:26 am

    Why are these all of a sudden a new thing? These have been out for years. Is it a re-hash because NFA items have gotten so popular? Certainly nothing new. Mossberg offered a 14″ scattergun back in like 2015 with the Shockwave Raptor grip.

  • Scott March 13, 2017, 9:44 am

    Could a laser go on top of the receiver? Just wondering.

    • LVE4GOD March 13, 2017, 1:45 pm

      According to a Mossberg rep @ Shot Show, yes. I believe the term she used was “capped”, and you can clearly see the screws on top (given the right photo/video, that is).

  • CMarsolf March 13, 2017, 9:32 am

    Mossberg has been attaching that strap for decades, it’s not from Shockwave

  • Martin Mancuso March 13, 2017, 9:27 am

    Law suit waiting to happen. We received one of these into our store. First thing you notice is that the word \” shotgun\” is written all over the box. Second, there is no copy of an ATF approval letter included. All other products in this gray area of the market include one. With out one, people are very likely to get arrested for an unregistered nfa item. It will be up to a lawyer to sort this out in court. I find Mossberg very irresponsible in their packaging of this product. Can someone say \”class action lawsuits*?

    • davud March 13, 2017, 12:41 pm

      yeah, why mess with a weapon that could bring you an NFA charge and big lawyer’s bill to defend yourself, even if you’re in the right, when there are plenty of alternatives available.

      • Dogman March 13, 2017, 1:30 pm

        I think Mossberg inc. has better informed attorneys about their product on staff, than anyone here with an Outhouse Law Degree, that doesn’t even own the weapon. People here should be happy there are manufacturers willing to push the envelope and give us a different range of products, at their risk, free from government interference.
        Same as with a TV, dont like what’s on, change the channel, move on and don’t spoil the shows ending for the rest of us.

        • Lon March 13, 2017, 3:23 pm

          Exactly. Also, the burden of proof is on the authorities. No court, no lawyers, when your local Barney Fife tries to prosecute you for owning a legal firearm, you get to show him what an idiot he is.

          • Bob July 3, 2017, 1:12 am

            You may have all the Rights in the world, but at any given moment in time, Bubba with the Badge has the Power to make your life a living (or dying) hell. Nobody ever seems to learn, especially the minions of The State.

        • Ray Poteet November 25, 2018, 10:32 pm

          Thank you

    • Matt March 15, 2017, 9:12 am

      This is a complete lie Martin. I bought one yesterday and it is a very plain cardboard box and the word shotgun is not written on it anywhere. The Mossberg label says 12 gauge, 590, pump action. It does NOT say shotgun. There is a sticker on the top of the box that says : The enclosed firearm is a pistol grip firearm and is not designed to be fired from the shoulder.

      I think you better have another look at your Shockwave box because you are either mistaken or a liar. If the box does indeed say shotgun all over post a picture to back up your statement.

    • Jason April 4, 2017, 11:21 pm

      Doesn’t matter mine won’t be leaving my house anyway.

    • Michael Keim December 4, 2017, 11:02 am

      If it worries you so much don’t buy it.

    • Roland April 20, 2020, 10:01 am

      Did you buy this weapon second hand and is it a shockwave. I bought mine over a year ago and what you describe is what I’ll refer to as fake news.

  • Martin Mancuso March 13, 2017, 9:26 am

    Law suit waiting to happen. We received one of these into our store. First thing you notice is that the word ” shotgun” is written all over the box. Second, there is no copy of an ATF approval letter included. All other products in this gray area of the market include one. With out one, people are very likely to get arrested for an unregistered nfa item. It will be up to a lawyer to sort this out in court. I find Mossberg very irresponsible in their packaging of this product. Can someone say “class action lawsuits*?

    • MossbergCorp March 13, 2017, 12:05 pm

      Mr. Mancuso: We’re not sure where you are seeing the word, “shotgun” on the box (the boxes we checked in house do not have the word shotgun on the box or its end label). We’d very much like to see what you received– please send an image of the box to [email protected] as we will look into it immediately.
      I’m adding a link to the end of this comment with the letter from BATFE. I believe a copy should be shipping now with each Shockwave. Apologies if you did not have it in your shipment.
      (NOTE to all reading this: The letter speaks to the FEDERAL status of the 590 Shockwave, and does not speak to the legality of it state-by-state, as not all states follow the federal description of a ‘Shotgun.’)
      Link to the BATFE letter:
      Thank you.

      • LVE4GOD March 13, 2017, 12:42 pm

        Kudos on a quick, concise reply. Now I’m even MORE interested in buying a 590.

      • James March 13, 2017, 3:40 pm

        Thanks Mossberg – true class!

  • rev_dave March 13, 2017, 9:00 am

    I do believe this guy could fit into the cargo net under the dash of my ’60 minibus.

  • Arthur Breeger March 13, 2017, 8:32 am

    Don’t forget the Mossberg Maverk 88 with pistol grip {same thing]

  • SteveK March 13, 2017, 8:05 am

    I think we gots a WINNER here! Hope they can make em FAST.

  • mka March 13, 2017, 7:55 am

    I would like to know how much velocity is lost by the short barrel?

    • American USMC March 13, 2017, 1:32 pm

      mka Average 30 fps per inch loss or gain.

    • Dogman March 13, 2017, 2:01 pm

      Who cares? That’s what I’m not buying it for – scientific tests or head scratching. I’m buying it for the intended use, home defense and ease of use. It’s sort of like drinking a beer. You don’t worry about how the hopps and grains are picked, if they wore gloves picking them, if they were Union or if everyone’s taxes were paid up. You just legally buy it, drink it, and enjoy it.

  • Dustin Eward March 13, 2017, 3:00 am

    Were the snakes which were making the furtive movements wearing badges?

    • Oaf March 13, 2017, 2:25 pm

      No, they were your mom’s pimps.

  • matthew martinez March 13, 2017, 2:57 am

    Looks like another nevabin done befo weapon. this gun is already under my kitchen sink after starting out as a pgo used mossberg 500 with a raptor grip and same mag tube plus an oem 14 inch barrel. but i can say its a handy little weapon especially after spending 265 total on it. Buckshot is really loud though lol.

  • Ethan Chou March 10, 2017, 12:00 pm

    This will go great with my Mad Max attire!

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