SIG Sauer P320 RX Unboxed at the Gun Counter

Note to reader: Unboxed at the Gun Counter is a new series on GunsAmerica that will walk you through what you get when you buy a specific gun. Our goal is to provide a close-up look at features and functionality to help you make informed buying decisions.


This is a premium striker fired pistol that comes with the SIG Romeo1 red dot sight pre-mounted and zeroed, out of the box, making it an exceptional value for the price. MSRP for the full-size RX starts at $952 but you can usually find them for under $900.

Several are listed on GunsAmerica right now.

The P320 RX offers unparalleled versatility and comes with modular grips, and is offered in full-size and compact.

Our video shows a full-size model, but if you should decide you want to convert it to a compact you can remove the interchangeable trigger group and install it in a smaller frame with the appropriate slide and barrel. You can even change calibers without having to buy another gun. The trigger group is the serialized part and it is interchangeable with frames, barrels, and slides in 9MM, .357 SIG, .40 S&W and 45.

If you want to see the full product and accessories line up for the P320, go to SIG’s website.

Since the SIG P320 was chosen by the military to replace the Beretta M9 there has been a lot of interest in the platform and it has been covered extensively on GunsAmerica. To read more about the P320 line of pistols, check out our other reviews on GunsAmerica:

***Shop for a P320 RX on GunsAmerica***

{ 30 comments… add one }
  • Mickey May 4, 2018, 10:31 am

    Make sure you are not selling to mentally ill people, Nazis, KKK and the like, while you calling our government commies. Keeping citizens safe has nothing to do with communism

    • Hondo June 1, 2018, 12:39 pm

      So what you’re saying Mickey is don’t sell to democrats ?

  • Edward April 23, 2018, 1:47 pm

    Another plastic striker fired hand gun with no safety or decocker.

  • VnVet April 20, 2018, 7:14 pm

    Definitely a sweet piece BUT, $300.00 over priced. SIG is making a killing on those. If $600.00, I’d drop coin but too bad.

  • JUSTIN RIGDON April 19, 2018, 8:52 pm

    Will that fit in a p250 frame aswell?

  • Scotty Gunn April 19, 2018, 5:39 pm

    Just don’t drop it.

  • bill April 19, 2018, 4:34 pm

    why do I live in Ca, it is getting so hard
    to enjoy gun sports .
    But for the sig 320 look like a winner !
    I like the part about it’s ok to use a red dot
    for us old guy thank for the YOUTUBE
    video gun out of the box


    • David Welsh April 19, 2018, 5:02 pm

      You live in America. Exercise your rights. Suppose the commie legislature there said you couldn’t have more than a 4-round magazine. Don’t you see it is all arbitrary? Strength lies in numbers. Resist and ignore.

  • John R April 19, 2018, 4:33 pm

    I brought the compact carry RX. I’ve put about 300 rounds through it so far. It eats ammo like candy. Steel cased ammo, JHP’s, and SP’s, regardless of the weight. No FTS’s stove pipes or misfires of any nature and clean up was a breeze.
    If you are used to the heft of an all steel pistol there will a learning curve as you adjust your muscle memory that has been imprinted with the weight of an all steel pistol.
    In my experience the red dot lets you take your shots out further. Close range you will probably be more inclined to rely on the iron sights but once you are in the zone with the red dot you’re there and the round will go where the dot is set.
    The Romeo red dot is a nifty add on that is co-witnessed with the iron sights. I’m glad I brought mine but for a lot of people I’m sure they will be asking themselves if the extra $$$ for the Romeo is worth the expense when the 320 is a great firearm without it.

  • Richard G Studley April 19, 2018, 4:30 pm

    Can you take the trigger Assembly and buy another frame and add it to the other so you can carry it without buying another pistol

    • John R April 19, 2018, 7:01 pm

      There are a lot of good video’s on YouTube that will answer your question. Essentially the trigger assembly is the firearm that can be moved from compatible slides and frames. Something I’ll probably never do but it’s a great option.

  • Richard G Studley April 19, 2018, 4:18 pm

    How does it except reload ammunition

  • Ron Winship April 19, 2018, 12:07 pm

    Love those SIGS….but please…Gingerbread and stiff icing? What is all this madness about Rail Guns? Then you add a Red Dot? Then you make people figure out which holster actually works with all this stuff? No,

    Wanting Basic may be making us into Dinosaurs….but heck, guess we always were Dino’s! We just want a firearm that loads the mags easily, grasps the point of aim and front site for those target over 25 yards…..and feels good when you shoot it. Too much to ask?

  • Bill April 19, 2018, 11:09 am

    Unboxed at the Gun Counter is a great idea.
    As for the P320 RX, I’ve recently handled one and found it to be well built and great trigger. I’m considering one myself.

  • Tyler April 19, 2018, 11:07 am

    Another plastic striker fired pistol.. How unique.

  • Grant Stevens April 19, 2018, 11:02 am

    Sights on self-defense handguns are superfluous. With proper training and practice, handguns are more effective when shot instinctively at close range. The hand/eye connection is natural and deadly.

  • Mike April 19, 2018, 10:31 am

    Agreed, clear the gun before you do anything else. Rookie mistake!

    • Mike April 19, 2018, 10:43 am

      After shooting red dot competitively, I’ve found them to aid in accuracy but not necessarily speed. It takes more time to access the dot verses open sites.

    • Godfrey Daniel April 19, 2018, 12:22 pm

      Do you seriously think he didn’t clear it before the vid? Come on. Do you need to see it to feel safe sitting in front of your comp.?

  • nomikes April 19, 2018, 9:52 am

    Excellent presentation. I had shot red dots for years. This has me considering the Sig 320

  • Nick Troonin April 19, 2018, 8:31 am

    Nice video except the presenter failed to do one very important thing. He never racked the slide to make sure the firearm was not loaded before doing his presentation with it. Very big no no especially for people that are not gun savvy. Safety first people!

    • Oscar Montano April 19, 2018, 10:54 am

      I thought the same thing great presentation but did not check the gun for a round in the chamber a treat every gun as if it were loaded

      • DR April 19, 2018, 1:53 pm

        Give me a break. I’m sure he had been handling the gun for some time before they rolled film. I hope he didn’t make you guys feel unsafe or nervous. Do you also not carry with a round in the pipe? Don’t want to violate any rules of safety after all!

        • NT April 21, 2018, 8:27 am

          Everyone who views these videos are not as presumptive. It’s good practice especially in today’s anti gun climate to display proper firearm safety and etiquette to those less gun savvy as yourself.

  • Jay Mar April 19, 2018, 8:04 am

    I’m guessing the RX doesn’t have that trusty old drop fire problem that the 320 had.

  • Jay Mar April 19, 2018, 8:00 am

    That’s FANTASTIC!

  • Michael Johnson April 19, 2018, 7:54 am

    Where’s Clay!?

  • tom April 19, 2018, 6:10 am

    Really nice but at that price point, sorry, but I have and know of plenty of 9/40/45s that shoot just as straight for 1/2 to 2/3 the price. May ask as well, does anyone in our community feel there’s desperate sales gimmicks that are now coming with bells and whistles on so many models/series/revision etc.etc? I can’t keep up! Semper Fi & 2ndA forever!

    • KEN April 19, 2018, 10:15 am

      You must not be considering the price without the optic{300.00} and their zeroing cost {?} then it would be 1/3 to 1/2 the cost.

  • Paul Furtaw April 19, 2018, 5:28 am

    The 45ACP version is not convertible to other calibers, it is a stand alone caliber because of the unique geometry of the 45ACP.

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