SIG Sauer P365 XMACRO 9mm, 4.4 in Threaded Barrel, Nitron, Optics-Ready, 21+1 Capacity
This SIG Sauer P365 XMACRO stands out with its XL/XMACRO-length slide, 4.4 in threaded barrel, and high-capacity 21+1 configuration. The stainless steel slide wears a Nitron finish and is optics-ready with a cover plate installed. The XMACRO-pattern grip module features a true M1913 Picatinny rail with three slots for accessory mounting.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are practically no markings from prior handling or use. The bore is bright and clean. Refer to the pictures.
What’s Included
- SIG Sauer factory hard case with label W365XL-9-EXR3P
- SIG Sauer instruction manual
- 1x 21-round extended double-stack steel magazine with grip-sleeve baseplate
The XMACRO-pattern grip module provides a longer, fuller hand fit while retaining the P365 series footprint. Its molded stippling, beavertail, and undercut trigger guard promote a secure hold and consistent control. A true M1913 Picatinny rail with three slots supports direct mounting of compatible accessories.
The optics-ready stainless steel slide, finished in Nitron, includes front and rear serrations for confident manipulation. The slide is marked P365 with the X logo and arrives with the optic cover plate installed.
The 4.4 in threaded barrel supports the XL/XMACRO-length format and pairs with day/night sights: a SIG X-RAY green-ring front dot and a black rear notch for a crisp sight picture in varied lighting.
This striker-fired 9mm comes with one extended 21-round magazine for a 21+1 capacity, and it is built on a durable polymer frame. Country of origin is USA, and the factory case label corresponds to mfg part number W365XL-9-EXR3P.




