Sig Sauer P320 XTEN 10mm – Superb 5 Inch 15 Round

Description

Ten millimetre has always attracted shooters who want more than 9mm delivers, and it has usually meant either a heavy 1911 or a plastic gun that punishes the hand. The Sig Sauer P320 XTEN 10mm takes a different route: a purpose built grip module and slide on the modular P320 chassis, sized properly for the cartridge rather than adapted from a 9mm. The result is a 33 ounce pistol that handles 10mm without drama.

A Purpose Built 10mm On The P320 Chassis

The important detail is that the grip module and slide are new rather than borrowed. Sig built a 10mm and 45 Auto sized X Full-Size module for this pistol, so the magazine well, the grip circumference and the slide mass all suit the cartridge. Guns that simply rechamber a 9mm frame in 10mm tend to beat themselves and the shooter; this one does not.

A 5 inch barrel gives the cartridge room to work. 10mm loses a great deal of its advantage from short barrels, and at full length it delivers the velocity that makes it worth choosing over 45 ACP or 9mm in the first place. Overall length is 8.5 inches and weight runs around 33 ounces, which is enough mass to keep the muzzle settled.

The trigger is the X Straight trigger with a ninety degree break, which gives consistent finger placement and a clean, predictable let off. The grip module is stippled polymer over a stainless steel frame, with an M1913 accessory rail for a light.

Sights, Optics And Magazines

Irons are XRAY3 day night sights, tritium for low light and a high visibility front ring for daylight. On a pistol that may be carried in the woods as a bear gun or kept for home defence, sights that work without a battery in poor light are the sensible choice.

The optic ready slide is cut to the Sig PRO or SIG-LOC PRO footprint depending on the variant, and takes the Romeo2 directly or a Trijicon RMR with a sealing plate. That is a full size optic footprint rather than a micro one, which suits a gun this size and gives a larger window to look through.

Two 15 round steel magazines ship with the pistol, and ten round versions exist for capacity restricted states. Fifteen rounds of 10mm is a genuinely useful figure, well beyond what a 1911 in the same chambering manages, and the steel bodies stand up to field use.

Sig Sauer P320 XTEN 10mm Specifications

• Caliber: 10mm Auto
• Capacity: 15+1 rounds, two 15 round steel magazines included
• Barrel length: 5 inches
• Overall length: 8.5 inches
• Height: 5.6 inches
• Width: approximately 1.3 to 1.4 inches
• Weight: approximately 33 ounces
• Sights: XRAY3 day night, tritium
• Trigger: X Straight with 90 degree break
• Manual safety: none
• Optic cut: Sig PRO or SIG-LOC PRO footprint, Romeo2 compatible, RMR with sealing plate
• Frame: stainless steel
• Grip module: X Full-Size polymer sized for 10mm and 45 Auto, black stippled
• Slide finish: Nitron
• Accessory rail: M1913

Sig lists the XTEN in several configurations, including a ten round version for capacity restricted states, models with a Romeo2 optic fitted, and the XTEN Comp with porting. Because the P320 uses a serialised fire control unit, grip modules and slides can be changed later without buying a new firearm.

Why Buyers Choose The Sig Sauer P320 XTEN 10mm

Ten millimetre from a properly sized gun is a different experience to 10mm from an adapted one. The Sig Sauer P320 XTEN 10mm was designed around the cartridge, and it shows in how controllable the recoil is for a round with this much energy.

Capacity is well ahead of the traditional alternative. Fifteen rounds against the eight or nine a 10mm 1911 offers changes what the pistol is useful for, whether that is hunting backup, woods carry or home defence.

And the P320 chassis means it is not a dead end. The fire control unit is the serialised part, so grip modules, slides and calibres can be changed down the line, and the aftermarket for the platform is enormous.

Who Should Buy The Sig Sauer P320 XTEN 10mm

This suits woods carry and hunting backup where a heavier cartridge matters, home defence, and range shooters who enjoy 10mm. It is also a sensible choice for anyone already invested in the P320 platform who wants a bigger bore. At 8.5 inches long and 33 ounces the Sig Sauer P320 XTEN 10mm is too large for most concealed carry, so look at the P365 family for that role.

Full manufacturer specifications for the Sig Sauer P320 XTEN 10mm are published by Sig Sauer on the official product page. Browse more Sig Sauer pistols and full size guns in our handguns category.