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SIG SAUER P320 Safety Information
July 29, 2025
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Sig Sauer P320 X-Five 9mm Full-Size 21-Round Centerfire Pistol

  • Item Number: 320X5-9-BAS
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  • View More Items by Sig Sauer
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  • Condition: NEW
Sig Sauer P320 X-Five 9mm Full-Size 21-Round Centerfire Pistol
$849.99 $1,005.00

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Product Description

Whats in the Box

  • Sig Sauer P320 X5 9mm Pistol
  • (4) 21-Round Magazines
  • Cable Lock
  • Owners Manual

The Sig Sauer P320 X-Five 9mm is the full-size variant in Sig's brand new P320 X-Series. The X-Five incorporates multiple features to maximize accuracy, shootability and ergonomics while maintaining the modularity of the standard P320 platform. Those features include:

  • Exclusive X-Series grip module
  • Deeper trigger guard undercut
  • Higher back strap and an extended beavertail to ensure a higher grip for better recoil management
  • Removable grip weight for improved balance
  • Removable magazine funnel and extended slide catch lever to facilitate faster reloads
  • Straight trigger that breaks at 90 degrees for an even better feeling pull
  • 5" bull barrel and lightened slide pair perfectly for match-grade accuracy
  • Dawson Precision® Fiber Optic front sight
  • Fully-adjustable rear sights
  • Rear sight plate can be easily removed as a unit and replaced with a ROMEO1 optic, which means every P320 X-Five pistol is optics-ready right out of the box
  • Four (4) 21-round steel magazines

Firearm Specifications

  • Manufacturer: Sig Sauer
  • Model: P320 X-Five
  • Series: X-Series
  • SKU: 320X5-9-BAS
  • Caliber: 9mm Luger
  • Magazines: Four 21-Round Steel Magazines
  • Frame Material: Polymer
  • Slide Finish: Nitron
  • Slide Material: Stainless Steel
  • Barrel Material: Carbon Steel
  • Accessory Rail: M1913
  • Front Sight: Dawson Precision® Fiber Optic front sight
  • Rear Sight: Fully-adjustable
  • Threaded Barrel: No
  • Action: Striker-fired
  • Barrel Length: 5 in.
  • Sight Radius: 6.8 in.

Customer Comments & Questions

Customer Reviews

(5 out of 5) Great firearm
by Ron from Chandler, AZ on March 10, 2018

A really nice pistol...shoots well and feels very good in my hands. Only thing I changed was the front sight; went with a Sig #8 T/FO.

(5 out of 5) Great Gun! Great Price! Thank you!!
by Bill from HOT SPRINGS VILLAGE, AR on December 13, 2018

After seeing their SIG SAUER sale on Nov. 29 & 30 I couldn't resist placing an order. It's a gun I've wanted for quite awhile but just never saw a compelling deal ........... until their sale. I picked it up yesterday. Great gun. I like the fact that everything I would typically do gto a competition gun has already been done ....... trigger , sights, mags, and mag well are already perfect. Too bad more holster companies don't make them for this gun.

(5 out of 5) SOSS
by Richard from Slidell, LA on January 25, 2019

Sportsman's Outdoor Superstore has the best prices and customer service! 

(4 out of 5) Far better than my P320
by Dave from Mundelein, IL on February 27, 2019

This is a very accurate handgun. Great for competition like USPSA, etc. Sig keeps improving whenever they release a new line. My only issue, and the reason I gave it 4 stars, is because the only optic you can mount on it is a ROMEO1 by Sig. Whereas, other manufacturers give you several plates for many manufacturer options in the market. Come on Sig, you can do better than that.

(5 out of 5) My favorite stryker fire pistol
by Rick from South Bend, IN on March 16, 2019

I’m a 1911 guy, but I own a “few” stryker fire pistols. Of the five Sig Sauer P320 models I have in various calibers and barrel lengths, the P320 X-Five is my favorite. Good feel, balance, accuracy, and maybe most important for a 1911 aficionado, a non-mushy, clean breaking trigger for a stryker fire, that doesn’t have a long travel or reset.

(5 out of 5) Excellent AFTER Break-In
by Dan from Mount Joy, PA on March 29, 2019

I ordered and received within a week. Great price, excellent shipping to my local FFL. This is a large handgun but well-balanced. A few early trips to the range were frustrating. The gun would not consistently return to battery. It took a nudge on the rear of the slide to push it the last few millimeters. I tried it with factory ammo and reloads. Anyway, I added a ROMEO1 red dot and shot it for zero. Then I used the Sig 320 X-Five in an all-day tactics training course. I had one failure to return to battery early in the day, and then it ran flawlessly for the next 500+ rounds with a mix of reloads of various projectile weights and powder charges. I shot it out to 50 yards and it hit where I aimed always a good thing!. This is an excellent full-sized pistol with a heavy barrel, skeletonized striker assembly, and other high-end details. I prefer the grip style of the X-Five to the Army issue version 320.

(4 out of 5) On Target
by Matt from Suwanee, GA on December 21, 2019

Great running pistol and there is a lot of heft to the x-five. Only issue was the front sight did not allow for enough adjustment. This was a quick fix to get back on target.

(4 out of 5) Tactical Games Ready
by Nelson from Lexington, SC on June 9, 2020

If you want an out of the box competition gun for USPSA like matches, cant beat the the X-5. It has 4X21 round mags, good sights, good trigger, good grip, overall a solid performer without any extras done to it. I have used it twice at the Tactical Games, Crossfit meets 2 Gun. It was my back up gun the first time. The second time it didnt make it through the first battle. The elevation screw popped out at the last string so needless to say shot very poorly. It popped out the week before at the range so I added blue loctite to help retain it. It apparently did not hold. Sig has a good warranty service so currently sent the slide back for them to look and add the screw. Also they are sending me some extra screws. Conclusion. Great gun for short matches. Not sure its ready for the Tactical Games.