The Sig Sauer P365 is a striker-fired subcompact 9mm pistol with a 3.1-inch barrel, 5.8 inches overall, and 17.8 oz (1.1 lbs) unloaded. Capacity is 10+1 rounds from a double-stack magazine. Finish is Nitron Black. Sights are X-RAY3 day/night. No manual safety. 
 

Key Specifications 

• Brand: Sig Sauer 
• Model Name: P365 
• MPN: 365-9-BXR3 
• Caliber: 9mm Luger (9x19 Para) 
• Class: Subcompact 
• Action Type: Double Action Only (Striker Fired) 
• Capacity: 10+1 rounds 
• Barrel Length: 3.1 inches 
• Overall Length: 5.8 inches 
• Weight: 1.1 lbs (17.8 oz) 
• Sights Type: X-RAY3 Day/Night Sights 
• Grip Material/Type: Textured Polymer Grip 
• Safety Features: No Manual Safety 
• Finish Type/Color: Nitron Black 
   

Features 

The P365's defining characteristic is its 10+1 capacity in a subcompact frame -- at the time of its release, that capacity in this size class was unusual. The X-RAY3 sights combine a high-visibility green front tritium element with rear blackout notches, which works well for both indoor and outdoor conditions. The double-stack magazine keeps overall width minimal relative to capacity. The textured polymer grip provides consistent purchase. No manual safety -- the striker-fired action requires deliberate trigger press. 
 

Use Context 

Intended for concealed carry and everyday carry. At 17.8 oz and 5.8 inches, it sits at the smaller end of the carry spectrum while maintaining a 10-round capacity that gives it a practical edge over single-stack micro-pistols in the same size range.

The P365 has broad positive reception among carry-focused shooters. Its capacity relative to size is the most consistently praised aspect -- fitting 10+1 into a subcompact frame was genuinely notable at launch. The X-RAY3 sights get practical marks for quick acquisition. Ergonomics and trigger feel are described positively by most owners.

Criticism is limited but real. Some early units had feeding and primer strike issues that were addressed through firmware and production changes -- buyers looking at used examples should be aware of the early revision history. Occasional comments about the price being high relative to alternatives come up, though most owners feel the size-to-capacity ratio justifies the premium. Overall one of the most discussed and positively reviewed micro-compact 9mm carry pistols on the market.