Sig Sauer P365 BXR3P MS 9MM 3 1IN Optic Ready 2X10RD
About this product
The Sig Sauer P365, SKU 365-9-BXR3P-MS, is a micro-compact 9mm carry pistol built around a 3.1-inch barrel, an optics-ready slide, and a factory-installed manual safety — a variant of Sig's P365 line aimed at shooters who specifically want a thumb safety on their carry pistol.
What's included with the manual safety on this P365?
Unlike the standard P365, which relies on a striker safety and trigger-mounted blade without a separate manual lever, this configuration adds a low-profile, frame-mounted ambidextrous thumb safety positioned where your thumb naturally rides during a normal grip. When engaged, it mechanically blocks the trigger from moving, adding a deliberate, physical step before the pistol can fire — a feature some carriers specifically want and others specifically avoid, so it comes down to personal training and preference.
What does "optic ready" mean on this slide?
The nitron-finished slide is cut to directly accept a ROMEOZero Elite red dot, using optic-mounting technology patented by ZEV Technologies. That means you can add a micro red dot without a separate adapter plate for that specific optic footprint, though always confirm footprint compatibility if you plan to run a different red-dot brand.
What's the capacity and physical size?
This P365 ships with two 10-round steel magazines — one flush-fit and one extended — giving you a choice between maximum concealment and a slightly longer grip for more control. The pistol has a 3.1-inch carbon steel barrel, an overall length around 6 inches, and weighs about 18.3 ounces, keeping it in genuinely pocket- and appendix-carry-friendly territory. It's rated for +P 9mm ammunition if you choose to carry a higher-pressure defensive load. Sights are Sig's XRAY3 day/night sights, giving you a usable, low-light-capable iron sight picture as a backup to any mounted optic.
Who should consider this pistol?
This is built for concealed carriers who want the P365's compact, high-capacity-for-its-size footprint along with a manual safety and factory optics compatibility — a combination that appeals to shooters coming from a 1911 or other manual-safety background, or anyone who simply wants that extra mechanical step for their carry gun. It's not intended as a range or competition-first pistol given its size.
How does the FFL transfer and California compliance work?
As a handgun, this P365 ships to a licensed FFL dealer for an in-person transfer and background check, not to a home address. Sig's P365 line's California roster status has varied significantly by exact configuration (barrel length, safety, and optics cut all matter), so California buyers should confirm this specific 365-9-BXR3P-MS configuration is currently roster-approved with their receiving FFL before ordering. Checkout is processed through secure checkout, and this listing makes no stock-level, shipping-speed, or discount claims.
What should first-time P365 buyers plan for at pickup?
Expect the same handgun process California applies to any pistol purchase: a 10-day waiting period, a valid Handgun Safety Certificate unless exempt, and a DOJ-approved firearm safety device included with the transfer. Given how many distinct P365 SKUs Sig has released over the years — with and without a manual safety, in different barrel lengths, with different optics cuts — it's worth having your FFL verify this specific 365-9-BXR3P-MS configuration against the current roster before you finalize the order.
Is the manual safety hard to learn?
Most shooters pick up the motion quickly since the lever sits right where a thumb naturally rests during a firing grip, but it's still a habit worth building through dedicated practice (with an unloaded firearm and proper safety checks) before carrying the pistol daily. If you've never carried a pistol with a manual safety before, dry-fire practice disengaging it as part of your draw stroke is time well spent.
FFL transfer required
This item is a firearm and ships only to a licensed FFL dealer, never to a home address. At checkout, enter your preferred dealer as the shipping address, or leave it blank and we will assign a licensed dealer near you at no extra cost. You complete the background check and paperwork with the dealer when you pick up.
California buyers: handguns must be on the California roster for delivery to a California FFL, a Firearm Safety Certificate (FSC) and DROS are handled at the dealer, and the 10-day waiting period applies. Out-of-state buyers receive the firearm through their own local FFL under their state's rules.
Specs at a glance
Pros & cons
What works
- Compact, concealable 9mm at 18.3 oz
- Factory manual safety for shooters who want one
- Optics-ready slide cut for a ROMEOZero Elite
- Rated for +P defensive ammunition
Trade-offs
- Manual safety adds a step some carriers prefer to avoid
- 10-round magazines are standard capacity, not extended
- California roster status must be confirmed for this configuration before ordering
Key attributes
| Transfer | Ships to your FFL dealer |
| Caliber | 9mm (+P Rated) |
| Capacity | 10+1 Rounds |
| Barrel Length | 3.1" |
| Action | Striker-Fired with Manual Safety |
| Weight | ~18.3 oz |
Frequently asked questions
- Does this P365 have a manual safety?
- Yes, a low-profile, ambidextrous, frame-mounted thumb safety, in addition to the standard striker safety features.
- What optic is the slide cut for?
- It's cut to directly fit a ROMEOZero Elite red dot using ZEV Technologies' patented mounting design.
- How many magazines come with it?
- Two 10-round steel magazines, one flush-fit and one extended.
- Is it rated for +P ammunition?
- Yes, the P365 is rated for +P 9mm loads.
- Can this ship directly to me?
- No, as a firearm it must transfer through a licensed FFL dealer.