SIG Sauer P365 9mm Micro, Nitron 3.1 in, Tritium Night Sights, No Manual Safety, 10/12/15-Round Mags, MPN 365-9-BXR3
This SIG Sauer P365 is the standard Nitron 3.1-inch base model (MPN 365-9-BXR3) in 9mm Luger with tritium night sights and no manual safety. It comes with three factory magazines (10-, 12-, and 15-round), plus the original SIG case and manual. The case end label shows SKU 365-9-BXR3 with a date of 13-JUL-2018.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are light handling marks from previous use. Please review the photos for a close look at surfaces and finish.
What’s Included
- SIG Sauer factory hard case (gray)
- SIG Sauer P365 operator's manual
- 1x 10-round SIG Sauer P365 steel magazine (flush-fit, Made in USA)
- 1x 12-round SIG Sauer P365 steel magazine with finger extension (Made in USA)
- 1x 15-round SIG Sauer P365 steel magazine with grip sleeve (Made in USA)
The P365 is a micro-size, striker-fired 9mm with a 3.1-inch barrel and a polymer frame finished in black with stippled texturing. This example is the base configuration with no manual safety and the left-side, button-style magazine release.
The slide wears a matte black Nitron finish and features steep, diagonal front and rear cocking serrations. It has no optic cut. The proprietary single-slot accessory rail provides compatibility with P365-specific lights and accessories.
Sighting is through tritium night sights: a front tritium post with a high-visibility green ring marked "TG-H3," paired with a two-dot tritium rear. These sights offer a bright, defined aiming reference in varied lighting.
Three factory SIG magazines are included to cover multiple capacities and grip lengths: a 10-round flush-fit, a 12-round with finger extension, and a 15-round with grip sleeve. The listed capacity for this configuration is 15+1.
Manufactured in the United States, this pistol is identified by MFG part number 365-9-BXR3. The case end label shows SKU 365-9-BXR3 dated 13-JUL-2018, and the label information matches this pistol.




