The Sig Sauer P320 XCompact is a striker-fired semi-automatic pistol chambered in 9mm Luger with a 3.6-inch barrel. It has a 10+1 capacity and ships in black with polymer grips. The optic-ready cut and included Romeo-X optic are called out in vendor titles, and night sights are listed as standard equipment. 
 

Key Specifications 

• Brand: Sig Sauer 
• Model: P320 XCompact 
• Caliber: 9mm Luger 
• Action: Semi Auto 
• Barrel Length: 3.6 inches 
• Capacity: 10+1 
• Color/Finish: Black 
   

Detailed Features 

• Optic-ready slide with Romeo-X optic as cited in vendor listings 
• Night sights included per title description 
• Polymer grip frame in the X-Series configuration 
• Compact frame sized between the full P320 and the subcompact

Owners of the P320 XCompact tend to cite the modular chassis system as the main draw. The ability to swap grip modules and caliber conversions without buying a new serialized frame is a practical advantage that keeps people in the P320 ecosystem once they are in it.

The 3.6-inch barrel makes it a comfortable carry option for those who find the full-size P320 too bulky but want more grip real estate than the subcompact. The Romeo-X optic pairing draws mixed opinions: some find the co-witnessing setup intuitive, while others prefer to source their own optic and use the optic-ready cut directly.

The P320 XCompact is not controversy-free. Drop-safety concerns from earlier P320 generations still come up in forums, though owners who have followed Sig's voluntary upgrade report no issues. Trigger reset is a frequent discussion point; some appreciate the short reset, others find it too light for consistent accuracy until they train around it.