SIG SAUER P320-XTEN COMP 10mm Pistol

Description

SIG SAUER P320-XTEN COMP 10mm Overview

The SIG SAUER P320-XTEN COMP is a compact, compensated 10mm Auto pistol built around the modular P320 platform. This exact black configuration is manufacturer part number 320XCA-10-COMP with UPC 798681688715. It combines a 3.8-inch bull barrel with an integrated expansion chamber at the front of the slide, giving the pistol a shorter carry-oriented format while preserving the power and versatility that make 10mm useful for outdoor, range, and defensive applications.

SIG developed this model as the first carry-size member of the P320-XTEN family. Its key distinction is the slide-integrated compensation system. The barrel ends behind the forward expansion chamber, allowing propellant gases to work through the chamber and help reduce muzzle rise. Because the compensating feature is part of the slide rather than a removable muzzle device, the front of the pistol remains streamlined and the barrel is not threaded.

Compact 10mm Performance

The P320-XTEN COMP measures 7.6 inches overall and uses a 3.8-inch carbon-steel barrel. At approximately 32.3 ounces with a magazine, it balances the authority of 10mm Auto with dimensions suited to easier transport and carry than a full-size hunting pistol. The 15+1 capacity is supported by two included 15-round steel magazines, providing a ready pair of factory magazines for training, field use, or responsible storage rotation.

The Nitron-finished stainless-steel slide has front and rear serrations for positive handling. Its integrated expansion chamber is engineered to mitigate recoil and muzzle movement, while the bull-barrel profile supports consistent lockup. The pistol is striker-fired and uses SIG’s flat XSERIES trigger, designed with a straight face and a 90-degree break. This configuration does not include a manual thumb safety.

Optic-Ready Slide and XRAY3 Sights

The slide is cut for SIG’s PRO optic footprint, giving the owner a factory-ready path to a compatible pistol-mounted red-dot sight. SIG specifically identifies the ROMEO2 and ROMEO-X Pro as optimized choices for this model. The optic cut is covered when no optic is installed, so the pistol remains fully usable with its factory sights.

XRAY3 Day/Night sights provide a durable iron-sight system for bright, transitional, and low-light environments. They remain available as a conventional aiming option whether the pistol is kept in its factory configuration or paired with a compatible optic. The sight radius is approximately 5.7 inches.

XSERIES Carry Grip and Controls

The polymer XSERIES carry-size grip module is sized for the larger 10mm Auto and .45 Auto P320 architecture. Its sculpted profile, undercut trigger guard, and textured gripping surfaces are intended to support secure control without adding unnecessary bulk. A full accessory rail beneath the dust cover accepts compatible lights and other equipment.

As part of the P320 family, the XTEN COMP uses SIG’s serialized fire-control unit concept. The controls include ambidextrous slide-catch levers and a reversible magazine release, allowing the basic control layout to accommodate a broad range of users. The black grip module, black Nitron slide, and low-profile controls give the pistol a practical, uniform finish.

Key Specifications

• Manufacturer part number: 320XCA-10-COMP
• UPC: 798681688715
• Caliber: 10mm Auto
• Action: Striker-fired semi-automatic
• Barrel: 3.8-inch carbon-steel bull barrel
• Compensation: Integrated slide expansion chamber
• Capacity: 15+1 rounds
• Magazines: Two 15-round steel magazines
• Sights: XRAY3 Day/Night sights
• Optic cut: SIG PRO footprint
• Overall length: 7.6 inches
• Overall width: 1.4 inches
• Overall height: 5.6 inches
• Weight: Approximately 32.3 ounces with magazine
• Finish: Black Nitron slide with black polymer grip module
• Manual safety: No

Purpose-Built Carry-Size XTEN

The P320-XTEN COMP is a strong fit for users who want factory compensation, full 15-round 10mm capacity, night sights, and an optic-ready slide in a more compact package. Its integrated design avoids the added length of an external compensator while retaining the familiar modularity and control layout of the P320 series. Confirm optic, holster, ammunition, and accessory compatibility with the respective manufacturers before use, and follow all applicable laws and safe-handling practices.