The Sig Sauer P320 XTEN 10mm optics-ready pistol bridges the gap between full-featured duty and competition performance and practical field carry. Built on Sig's proven P320 platform, the XTEN brings the power of 10mm in a full-size frame engineered specifically for hunters and shooters who demand both raw power and controllability. The 5-inch barrel strikes a balance between velocity and usability, and the factory optic-ready slide accepts popular reflex sights without gunsmithing—making it an excellent platform for modern shooting disciplines from hunting to dynamic range work.
The XTEN leverages Sig's redesigned XSeries grip module, which addresses the unique recoil signature of 10mm with improved ergonomics and a stippled finish that locks in your grip under demanding conditions. The flat XSeries trigger breaks cleanly at 90 degrees, consistent with competition-grade triggers you'd find in much more expensive pistols. Sig backs the whole package with XRay3 day/night sights, so you're equipped for low-light hunting scenarios right out of the box. Two 15-round steel magazines ship with the gun, giving you realistic hunting and defensive capacity.
This is a full-size, serious-use pistol—at 33 ounces and 8.5 inches overall, it's not a pocket gun, but that heft and length deliver the sight radius (6.8 inches) and control you need when accuracy matters. The nitron-finished stainless steel slide and carbon steel barrel are built to handle the abuse 10mm delivers, and the M1913 accessory rail lets you mount lights or lasers for hunting or tactical applications.
| Caliber | 10mm Auto |
| Barrel Length | 5 inches |
| Overall Length | 8.5 inches |
| Overall Width | 1.3 inches |
| Height | 5.6 inches |
| Weight | 33 oz |
| Sight Radius | 6.8 inches |
| Trigger Action | Striker |
| Trigger Type | XSeries Straight |
| Grip Module | Full-Size Polymer XSeries, Black |
| Slide Material | Stainless Steel |
| Slide Finish | Nitron |
| Barrel Material | Carbon Steel |
| Sights | XRay3 Day/Night Sights |
| Accessory Rail | M1913 |
| Magazines Included | (2) 15-round Steel |
| Manual Safety | None |
| Optics Ready | Yes |
The XTEN slide is designed to accept the Sig Sauer Romeo2 reflex optic and is also compatible with Trijicon RMR sights. Both mount directly to the factory optic-ready cut without modification.
Yes. The 10mm caliber, 5-inch barrel, and 6.8-inch sight radius make it a capable hunting pistol for medium-sized game. The XRay3 day/night sights support low-light hunting conditions, and the optics-ready slide lets you add a reflex sight for faster target acquisition.
Two 15-round steel magazines are included with the pistol.
No, the barrel is not threaded.
Firearm Shipments:
To buy rifles or shotguns, you must be 18 years old, and for handguns, actions, or receivers, the minimum age is 21. By placing an order for this firearm, you confirm that you are the legitimate transferee/buyer, meet the legal age requirements, and comply with all Federal, State, and local laws and regulations necessary to purchase this firearm.
We only ship firearms to valid Federal Firearms License (FFL) holders. At checkout we provide a FFL locator for your convenience.
We will need a copy of the FFL’s license to facilitate the process, kindly request your dealer to email us a copy of their FFL, as we cannot dispatch the firearm until we receive this document. It is imperative for the buyer to choose their FFL dealer, ensure they are willing to facilitate the transfer, and have them email their FFL copy to BOSQUE Outdoors. To avoid any confusion, the customer's name or order number must be mentioned in the email containing the FFL.
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Sig Sauer
Sig Sauer
