Sig Sauer P365 FUSE 9mm, 4.3" DLC Barrel, Optics-Ready Nitron Long Slide, 21+1 Capacity, Made in USA
This P365 FUSE stands out with its long slide, 4.3" DLC-coated carbon steel barrel, and optics-ready configuration with a cover plate. This example includes two 21-round extended steel magazines and features a flat, nickel-plated trigger, aggressive-texture grip module with interchangeable backstraps, and a true 1913 Picatinny rail. Manufactured in Newington, NH, this recent-release variant brings useful, concrete upgrades to the proven P365 series.
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 some very mild scuffs present on exterior surfaces, but overall the firearm remains in fantastic shape.
What’s Included
- SIG Sauer factory hard case
- Factory paperwork
- Two 21-round extended steel magazines with orange followers
- Interchangeable backstraps (L and S)
Note: Per the factory case label for MPN 365XF-9-BFO, the original package includes three magazines (one 17-round and two 21-round). The 17-round magazine is not included with this listing.
The FUSE submodel pairs a long slide with front and rear serrations and lightening cuts, giving this P365 variant a distinctive profile. The slide wears a Nitron black finish and includes an optics cut with a cover plate, letting the buyer add a compatible optic at their discretion while retaining a clean setup out of the box.
The 4.3" barrel is carbon steel with a durable DLC coating. The barrel hood is marked "SIG SAUER 9mm x 19," and the slide is marked "P365," aligning with factory markings collectors expect on this series.
The polymer grip module uses an aggressive texture and includes a removable flared magwell and interchangeable backstraps to fine-tune fit. A flat-faced, nickel-plated trigger complements the striker-fired action for a consistent pull. A 3-slot 1913 Picatinny rail on the dustcover supports accessory mounting.
Sight configuration is straightforward and practical: a green fiber-optic front sight paired with a plain black serrated rear. The overall package is chambered in 9mm Luger with a 21+1 capacity using the included extended magazines.
Factory details round out the build, including the mfg part number 365XF-9-BFO and U.S. manufacture in Newington, New Hampshire. As a recent release in the P365 line, this configuration brings together sought-after features in a cohesive factory package.