SIG Sauer P365-FUSE 9mm Luger, 4.3 in Barrel, 17+1 Capacity, Optics-Ready (RMSc), Nitron/DLC Finishes
The SIG Sauer P365-FUSE pairs a 4.3 in barrel and 17+1 capacity with the P365 modular FCU architecture, delivering a compact, high-capacity package with practical upgrades. This U.S.-made model features a stainless steel slide with a Nitron finish, a carbon-steel barrel with a DLC finish, an optics-ready slide cut for the Shield RMSc footprint, and an LXG-textured XMACRO-length grip module with interchangeable backstraps and a removable flared magwell. The case label shows model code 365XF-9-BFO dated June 13, 2024.
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 minimal handling marks consistent with light prior use. Please refer to the photos for a close look at the exterior surfaces.
What’s Included
- SIG Sauer factory hard case
- SIG Sauer safety/owner's manual
- Interchangeable backstraps for P365-FUSE
- Dawson Precision fiber-optic sight replacement kit
- One 17-round factory P365-series magazine
The 4.3 in carbon-steel barrel wears a durable DLC finish, while the stainless steel slide is finished in Nitron for corrosion resistance. Front and rear cocking serrations, purposeful relief cuts, and a two-screw cover plate support easy manipulation and straightforward optics mounting when desired.
The P365-FUSE uses a striker-fired, short-recoil locked-breech action with a flat-faced, nickel-plated trigger. It is configured without an external manual safety. The left side of the slide is marked "P365."
Factory sights include a fiber-optic front and a black serrated rear for a clear, daylight-oriented sight picture. An included Dawson Precision fiber-optic replacement kit provides spare fiber material to refresh the front sight as needed.
The LXG-textured polymer grip module is XMACRO length and accepts interchangeable backstraps for fit tuning. A removable flared magwell (retained by a screw) speeds magazine changes, and a Picatinny accessory rail on the dust cover supports common lights or accessories.




