The Sig Sauer P365 in .380 ACP is a micro-compact striker-fired pistol with a 3.1-inch barrel, 10+1 capacity, Siglite night sights, and an integrated accessory rail. Frame and slide are stainless steel with a black Nitron finish. It ships with two magazines and a mag loader. 
 

Key Specifications 

• Brand: Sig Sauer 
• Model: P365 
• Caliber: .380 ACP 
• Barrel Length: 3.1 inches 
• Overall Length: 5.8 inches 
• Capacity: 10+1 rounds 
• Weight: 15.70 oz 
• Action Type: Striker Fire 
• Frame Material: Stainless Steel with Black Nitron Finish 
• Slide Material: Stainless Steel with Black Nitron Finish 
• Grip Material: Black Polymer 
• Sight Configuration: Siglite Night Sights 
• Includes: Two magazines, mag loader 
   

Detailed Features 

 
The .380 ACP version of the P365 shares the micro-compact dimensions of the original 9mm model — 5.8-inch overall length and 15.70 oz — but uses the lower-pressure .380 ACP cartridge, which reduces felt recoil and racking effort. The 10+1 capacity is high for a .380 ACP of this size. Siglite night sights are factory-installed tritium units. The integrated rail accepts lights. The striker-fired action gives a consistent pull weight on every shot.

Buyers who choose the .380 ACP P365 over the 9mm version generally cite two reasons: lower recoil for shooters who find 9mm in a micro-compact uncomfortable, and easier slide racking for those with limited hand strength. For those use cases, the tradeoffs are understood — .380 ACP is less powerful than 9mm, and the ballistics from a 3.1-inch barrel are modest.

The 10+1 capacity for a .380 ACP pocket pistol is notable and gets positive mentions. Night sights are appreciated as a factory standard feature rather than an add-on. The overall P365 ergonomics — thumb shelf, grip texture, slide serrations — translate directly to this caliber version.

Pricing is the same tier as the 9mm P365, which prompts discussion about whether .380 ACP is worth the same price. Most buyers who've already decided they want .380 find the value fair; those undecided on caliber often end up choosing the 9mm instead.