Sig Sauer P365-380 .380 Auto
Model: 365-380-BSS-MS
Sig Sauer P365-380 .380 Auto
Model: 365-380-BSS-MS
Full Specifications
About This Firearm
The Sig P365-380 takes everything that made the P365 the best-selling micro-compact 9mm and chambers it in .380 Auto. It carries 10+1 rounds in a frame that measures 5.8" overall and weighs 15.7 oz, making it the highest-capacity subcompact .380 by a wide margin. The Ruger LCP MAX matches the 10-round count but does it in a true pocket gun with integral sights and no optic cut. The P365-380 ships with SIGLITE night sights, an optics-ready slide, a manual thumb safety, and two magazines. That optic compatibility is rare in .380s and lets you mount a micro red dot straight from the box.
The 6.3 lb striker-fired trigger is heavier than the S&W Shield EZ's 4.4 lb pull, and reviewers note it has more take-up before the wall. But the P365-380 is 2.8 oz lighter than the Shield EZ (15.7 vs 18.5 oz) and nearly an inch shorter overall (5.8" vs 6.7"). The Ruger Security-380 carries 15 rounds but weighs 19.7 oz and stretches to 6.52". Buy the P365-380 if you want the most features packed into a small .380 frame: night sights, optic cut, manual safety, and 10 rounds. Skip it if trigger pull weight matters more to you than size, because the Shield EZ has a noticeably lighter break in a slightly larger package.
Best For
Strengths & Limitations
- 10+1 capacity in a 15.7 oz subcompact frame. The Ruger LCP MAX matches the round count but has no night sights and no optic cut.
- Factory optics-ready slide is nearly unique among .380s. Only the Walther CCP M2 also ships with an optic cut in this caliber.
- SIGLITE tritium night sights come standard. Most .380 competitors ship with basic white dot or integral sights.
- The 6.3 lb trigger pull is the heaviest among subcompact .380s in this group. The S&W Bodyguard 2.0 runs a 5 lb pull, and the Ruger LCP MAX is 5.8 lbs.
- Shares the P365 frame dimensions but no magazine compatibility with the 9mm P365. If you already own a P365 in 9mm, you cannot share magazines between them.
Category Rankings
How the Sig Sauer P365-380 .380 Auto ranks among subcompact .380 Auto handguns.
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Alternatives to Consider
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| NAME | BEST PRICE |
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Ruger LCP MAX .380 Auto
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Bersa Thunder 380
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Kimber Micro .380 Auto
Kimber
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Smith & Wesson Bodyguard 2.0 .380 Auto
Smith & Wesson
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Glock G42 .380 Auto
Glock
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Frequently Asked Questions
Can I use P365 9mm magazines in the P365-380?
No. Despite sharing the P365 frame, the P365-380 uses dedicated .380 Auto magazines. The feed lips are shaped differently for the .380 cartridge. Sig makes 10-round flush-fit and 12-round extended magazines specifically for this model.
Does the Sig P365-380 have the same recoil spring issue as early P365s?
Sig issued updated recoil springs and the P365 manual recommends roughly 2,500-round replacement intervals to manage early P365 striker drag and spring complaints. The P365-380 inherits this same maintenance interval — the underlying striker and recoil spring design is shared across the platform, so plan on routine spring replacement rather than treating it as a one-time fix.