The Sig Sauer P320 XTEN Comp is a semi-automatic pistol chambered in 10mm Auto with a 3.8-inch barrel. It has an optic-ready slide, manual safety, and a modular polymer frame from the X-Series line. The pistol ships with two 15-round magazines in a black finish. 
 

Key Specifications 

• Brand: Sig Sauer 
• Model: P320 XTEN Comp 
• Caliber: 10mm Auto 
• Action: Semi Auto 
• Capacity: 15+1 
• Barrel Length: 3.8 in 
• Color/Finish: Black 
   

Detailed Features 

• Optic-ready slide cut for direct mounting 
• Manual safety included 
• X-Ray 3 sights 
• Modular polymer carry frame 
• Ships with two 15-round magazines

Owners of the P320 XTEN Comp appreciate that Sig chambered the P320 platform in 10mm without requiring a completely different manual of arms. The carry-size frame with a 3.8-inch barrel is a practical balance for field carry, and most report that the comp noticeably softens the heavier 10mm recoil impulse.

The manual safety is a point of debate. Shooters coming from other P320 variants find it a natural addition, while those used to striker-fired pistols without a safety occasionally report training friction during the draw. The X-Ray 3 sights earn consistent positive notes for daylight visibility.

The P320 XTEN Comp carries a price that reflects its X-Series specification, and some owners feel the value is there given the optic cut and included magazines. A common gripe is that 10mm-compatible holsters for the P320 platform require more searching than standard P320 carry options.