SHARE

Shooters in the U.S. became familiar with the SIG Sauer P220 series of handguns when the original design hit our shores in the late 1970s. During the intervening years, we were introduced to the P225, P226, P228 and the P229 as the flagship handgun of the SIG line expanded and contracted into various designs and chamberings.

Candidly though, other than varying dimensions, different cartridges, optional finishes and features like double-action-only (DAO) and double-action-Kellerman (DAK) triggers, not much has changed from the original P220 design. The vast majority of SIGs have been steel- or aluminum-frame handguns with exposed hammers and nothing but grip panels available when it came to suiting guns to individual shooters.

With the introduction of the company’s latest addition, the P320, all of that goes out the window. Made in the company’s New Hampshire facility, this modular, striker-fired pistol is a stark departure from more than 30 years of handgun tradition.

An integral rail molded into the dustcover of the P320 accommodates most lasers and lights.

There are a lot of truly different features on the P320. The most outwardly unique aspect of this pistol is the grip frame, which we’ve come to accept as the handgun’s core. On the P320, it is merely a hollow shell of molded polymer. All of the internal working parts—what SIG Sauer calls the “fire-control assembly”—are housed in a single, serialized stainless steel unit that detaches from the frame in seconds. This allows the user to change the entire grip frame to suit his or her individual body size or unique mission requirements.

Law enforcement agencies can purchase the P320 knowing it can be easily and affordably modified to three different frame sizes to suit the largest and smallest officer on the force (and everyone in between), without needing an armorer. Likewise, if a duty-size handgun needs to become more concealable, the standard P320 grip frame and slide assembly can be quickly swapped for the carry model, which features a shorter barrel and more-compact frame. The P320 can also be readily converted between chamberings, from 9 mm to .40 S&W or .357 SIG, using the same process.

Thanks to its removable fire-control assembly, the P320 can be customized to fit your mission or hand size.

From a logistical standpoint, the pistol makes a great deal of sense for an agency and can provide lots of options for the individual consumer, particularly in jurisdictions where registration requirements make owning or carrying numerous handguns difficult.

There’s one other advantage to being able to swap grip frames easily: it has become popular among owners of polymer-frame handguns to use grinding wheels, sandpaper and wood-burning kits to customize the grip for a perfect fit. With most frames, you get one shot at this—if you mess-up, you’ve just ruined your handgun. With the P320, you can always order another frame—at a reasonable price—and start anew.

In keeping with its duty/concealed-carry mission, the pistol ships with Siglite Night Sights that are quick to acquire in low light. The stippled grip surface enhances purchase, while the recessed contour behind the trigger guard improves comfort. The magazine release is adequately sized and easy to manipulate.

So, how does the P320 differ from the P250? While the P250 shares the P320’s modularity, it is a traditional double-action-only system with a spurless hammer and a long trigger pull. The P320, on the other hand, is a striker-fired handgun. Unlike all of the other handguns in the P220 series—which use either traditional double-action or double-action-only (DAO) triggers—the P320 has a short and consistent trigger pull with a short, positive reset.

My biggest gripe with SIG pistols has always been their triggers—not only is the DA/SA trigger difficult to master, shooters accustomed to other designs can actually “miss” the reset by short-stroking the trigger, a really bad thing in a gunfight. The P320’s trigger has a tiny bit of take-up before hitting a wall and breaking at 7 pounds. I measured the trigger’s reset at just shorter than .1 inch, which is pretty dang short. I can’t see myself missing this one. Shooters who have fought through the long DA trigger pulls of SIGs in the past will appreciate the trigger on the P320.

An example of the pistol’s adaptability, the use of a captive recoil spring contributes to hassle-free customization when pairing grip modules with the proper barrel and slide conversion.

The P320’s controls are simple, minimal and ambidextrous. Since there is no hammer, the familiar de-cocking lever is absent from its frame. The only controls on the handgun are a reversible frame-mounted magazine release, a fully ambidextrous slide-stop lever and a reversible takedown lever. Having recently suffered through scores of weak-hand reloads at Rogers Shooting School, I can now fully appreciate a slide stop on both sides of the frame.

The grip itself has some pretty aggressive stippling, which I like, and a molded accessory rail on the dustcover is present for mounting a light and/or a laser. My only real complaint about the controls is the takedown lever is placed squarely where my weak-hand thumb likes to ride the frame. I’d consider reversing the takedown lever to the right side of the frame to get it out of my way. One of the pistol’s features I really like is the cutouts on either side of the frame, which allow the magazine to be stripped forcefully from the frame when necessary, such as when correcting a double-feed. Speaking of magazines, steel versions with polymer base plates ship with the pistol.        

The P320 offers ambidextrous operation without any external safeties. Disassembly does not require pulling the trigger.

Disassembly of the P320 could win a prize for “easiest on the market.” The slide is locked to the rear, the magazine is removed and the takedown lever is rotated 90 degrees south. The slide is then removed from the frame and the barrel and recoil spring assembly are removed—fieldstrip done. To remove the frame assembly from the grip, the user pulls the takedown lever while twisting it out of the frame. The frame assembly rocks easily out of the grip for cleaning or to change configurations. The process is reversed to reassemble the handgun, and it really is as easy as it sounds. Disassembly does not require pulling the trigger, a fact the company rightfully touts as a safety feature.

As safeties go, the P320 incorporates several, but there is no manual safety on the handgun. The standard trigger can be replaced with a “safety tab” trigger, but the tabbed model is not necessary for the pistol to be drop-safe. A slide-mounted striker safety prevents it from firing unless the trigger is pulled, and a disconnector in the frame prevents the P320 from firing out-of-battery. The extractor doubles as a visual and tactile loaded-chamber indicator.  

Angled serrations at the rear of the slide help make the P320 easy to operate.

The top of the P320 uses a Nitron-coated, carbon-steel slide and a 4.7-inch hammer-forged steel barrel. Operation of the pistol is a traditional Browning tilting-barrel configuration, which mirrors other full-size SIG Sauer pistols. The recoil spring is a captive flat-coil design, as opposed to the coil spring found on most of the company’s handguns. Designed as a duty pistol, the P320 comes standard with steel Siglite Night Sights, which add about $100 of value right off the bat. Initially, the P320 is being offered in 9 mm and .40 S&W, and models in both chamberings are dimensionally identical other than the size of the bore and magazine capacity.  

My production sample used the medium grip frame, which is probably about right for the majority of users and fit my average-size hands pretty well. The P320 is a fairly large handgun, with an overall length of 8 inches and a weight of 29 ounces with an empty mag seated. It is definitely scaled for duty-holster use. Were I looking at it for concealed carry, I’d opt for the Compact model, keeping in mind the entire handgun can be adapted to any available configuration.

A spare 17-round magazine is included with the SIG P320.

The P320 is loaded and operated like any other striker-fired handgun on the market. It’s a simple pistol to operate and would lend itself well to training groups of shooters at one time. With a good trigger, good sights and grips adaptable to suit different shooters, it’s easy to shoot well. I’ve fired plenty of SIG Sauer handguns over the years, so shooting one with the short reset and simple mechanics of a striker-fired gun was interesting. Using the basic-but-serviceable polymer holster that came with the gun, I ran the P320 through some standard self-defense drills to get a feel for it. Even though I’d fired 2,500 rounds through a different handgun the week prior, I adapted quickly to the P320’s rhythm.

My overall complaint about the P320 is a net that I’ll cast over nearly every SIG pistol: a bore axis that results in more muzzle flip than necessary. This isn’t the end of the world, but it’s one of my pet peeves. At least you don’t have to worry about the slide biting your hand. The P320 was shootable and mechanically accurate, with good hits made easily on both the close-in IPSC targets and the 25-yard bullseyes used for formal accuracy testing. It functioned with 100-percent reliability throughout testing, while being fed various types of ammo.

The P320 makes a heck of a lot of sense for law enforcement agencies, where a single firearm can be adapted for a variety of uses by a host of users. Individuals looking for a versatile handgun that combines multiple configurations and chamberings with a single serial number would be hard-pressed to find a more adaptive semi-automatic platform. This SIG breaks away from the company’s long tradition in favor of the simplicity enthusiastically adopted by both police agencies and the general shooting public. The P320’s striker-fired operation and short trigger reset put it in contention with any of its peers in the marketplace. I’d say SIG Sauer hit its mark with the P320.

Offering modularity in a duty-size platform, the P320 adapts to both user and mission.

56 COMMENTS

  1. Do you have a spam issue on this site; I also am
    a blogger, and I was curious about your situation; many of us
    have developed some nice procedures and we are looking to exchange techniques
    with other folks, why not shoot me an e-mail if interested.

  2. That is a good tip particularly to those fresh
    to the blogosphere. Brief but very precise information… Thanks for sharing this one.
    A must read article!

  3. Greetings! Very useful advice within this post!
    It is the little changes which will make the most significant
    changes. Thanks a lot for sharing!

  4. I’m extremely inspired together with your writing skills as neatly as
    with the layout to your weblog. Is this a paid subject matter
    or did you modify it your self? Either way stay up the excellent quality writing, it’s uncommon to look a nice
    weblog like this one nowadays..

  5. Hello there! This is kind of off topic but I need some advice from an established blog.
    Is it tough to set up your own blog? I’m not very techincal but I can figure things
    out pretty fast. I’m thinking about creating my own but
    I’m not sure where to begin. Do you have any ideas or suggestions?
    Cheers

  6. of course like your web-site however you have to test the spelling on quite a few of your posts.

    Many of them are rife with spelling problems and I find it very bothersome to
    inform the truth then again I’ll definitely come again again.

  7. We are a group of volunteers and opening a new scheme in our community.

    Your website provided us with valuable information to work on. You’ve done an impressive job and our whole community
    will be grateful to you.

  8. of course like your web site however you have to take a look
    at the spelling on several of your posts. Many of them are rife with spelling problems and I in finding it very troublesome to tell the reality then again I will
    definitely come back again.

  9. hey there and thank you for your information – I’ve definitely picked up something new from right here.
    I did however expertise a few technical issues using this web site, since
    I experienced to reload the web site a lot of times previous to I could get
    it to load properly. I had been wondering if your hosting
    is OK? Not that I am complaining, but sluggish loading instances times will very frequently affect your
    placement in google and could damage your high quality score if ads
    and marketing with Adwords. Anyway I’m adding this RSS to my e-mail and
    could look out for a lot more of your respective interesting content.

    Ensure that you update this again soon.

  10. Wow, marvelous blog layout! How long have you been blogging for?
    you make blogging look easy. The overall look of your website is excellent, let alone the content!

  11. I am not positive the place you’re getting your info,
    but good topic. I must spend some time studying much more or
    figuring out more. Thanks for fantastic information I was looking for this info for my mission.

  12. I have been exploring for a bit for any high quality articles or blog posts on this kind
    of space . Exploring in Yahoo I ultimately stumbled upon this
    web site. Reading this information So i’m satisfied to express that I have a very good uncanny feeling I found out exactly what I needed.
    I such a lot indubitably will make certain to don?t
    disregard this site and provides it a look regularly.

  13. This design is spectacular! You definitely
    know how to keep a reader amused. Between your
    wit and your videos, I was almost moved to start my own blog (well, almost…HaHa!) Fantastic job.
    I really enjoyed what you had to say, and more than that, how you presented it.

    Too cool!

  14. Appreciating the commitment you put into your website and detailed information you provide.
    It’s nice to come across a blog every once in a while that isn’t the
    same unwanted rehashed information. Fantastic read!
    I’ve saved your site and I’m adding your RSS feeds to my
    Google account.

  15. What’s up, constantly i used to check webpage posts here in the early hours in the dawn, as i like to gain knowledge of more and more.

  16. Greate post. Keep writing such kind of information on your
    page. Im really impressed by your blog.
    Hi there, You have done a fantastic job. I will definitely digg it and in my opinion recommend to
    my friends. I am sure they’ll be benefited from this web site.

  17. Great blog right here! Also your site loads up fast!
    What web host are you the use of? Can I get your affiliate link in your
    host? I desire my website loaded up as quickly as yours lol

  18. Hi! I just want to give you a big thumbs up for
    the excellent info you’ve got right here on this post.
    I will be returning to your blog for more soon.

  19. Hey I know this is off topic but I was wondering if you knew of any
    widgets I could add to my blog that automatically tweet my
    newest twitter updates. I’ve been looking for a plug-in like this
    for quite some time and was hoping maybe you would have some experience with something like this.
    Please let me know if you run into anything. I truly enjoy reading your blog and
    I look forward to your new updates.

  20. I wanted to thank you for this good read!!
    I certainly loved every bit of it. I have got you book marked to
    look at new things you post…

  21. What’s Taking place i’m new to this, I stumbled upon this I’ve found
    It absolutely useful and it has aided me out loads. I’m hoping to give a contribution & help different customers like its aided me.
    Good job.

  22. Unquestionably imagine that which you stated. Your favorite justification appeared to be
    at the web the simplest thing to understand of. I say to you,
    I definitely get annoyed while people think about concerns
    that they plainly don’t know about. You managed to hit the nail upon the top and
    also outlined out the whole thing without having side-effects , people can take a signal.
    Will probably be back to get more. Thank you

  23. Good day! I could have sworn I’ve been to this site before but
    after browsing through a few of the articles I realized it’s new to me.
    Anyways, I’m certainly pleased I discovered
    it and I’ll be book-marking it and checking back frequently!

  24. Excellent article. Keep writing such kind of information on your page.
    Im really impressed by it.
    Hello there, You have done an excellent job. I will definitely digg it and individually recommend to my
    friends. I am confident they will be benefited from this site.

  25. Have you ever thought about adding a little bit more than just your articles?
    I mean, what you say is important and all.
    But think of if you added some great pictures or video clips to give your posts more, “pop”!
    Your content is excellent but with pics and clips, this blog could undeniably be one of the very
    best in its field. Fantastic blog!

  26. I’m really enjoying the design and layout of your website.
    It’s a very easy on the eyes which makes it much
    more pleasant for me to come here and visit more often. Did you hire out a designer to create your theme?
    Exceptional work!

  27. Wow, fantastic blog format! How lengthy have you ever been blogging for?
    you made blogging look easy. The full look of your web site is fantastic, let
    alone the content!

  28. You really make it seem so easy with your presentation but I find this matter to be actually something that I think I
    would never understand. It seems too complex and extremely broad for me.
    I’m looking forward for your next post, I will try to get the hang of
    it!

  29. Admiring the hard work you put into your site and in depth information you present.
    It’s good to come across a blog every once in a while that isn’t the same outdated
    rehashed material. Excellent read! I’ve bookmarked your site and I’m adding
    your RSS feeds to my Google account.

  30. I know this if off topic but I’m looking into
    starting my own weblog and was curious what all is required to get
    set up? I’m assuming having a blog like yours would cost a pretty
    penny? I’m not very internet smart so I’m not 100% certain. Any suggestions or advice would be greatly appreciated.

    Kudos

  31. Great beat ! I would like to apprentice even as
    you amend your website, how can i subscribe for a blog site?
    The account aided me a appropriate deal. I were tiny bit acquainted
    of this your broadcast provided brilliant transparent concept

  32. Hi there, I found your site via Google at the same time
    as searching for a comparable subject, your web site got here
    up, it appears to be like good. I’ve bookmarked it in my google bookmarks.

    Hi there, just was aware of your weblog via Google, and located that
    it’s really informative. I’m going to watch out for brussels.
    I will be grateful should you proceed this in future.
    Lots of other people will probably be benefited from
    your writing. Cheers!

  33. Wonderful blog! I found it while surfing around on Yahoo News.
    Do you have any suggestions on how to get listed in Yahoo News?
    I’ve been trying for a while but I never seem to get there!
    Many thanks

LEAVE A REPLY

Please enter your comment!
Please enter your name here