SIG Sauer P365 FUSE 9mm, Long-Slide 4.3 in Barrel, 10-Round, Optics-Ready Nitron Slide, LXG Grip, FOXTROT1X Light Installed
This P365 FUSE is the long-slide variant of SIG Sauer's micro-compact series, configured with a 4.3 in carbon-steel DLC barrel, a stainless steel slide with Nitron finish and optics cut, and a 10-round compliant package. It adds SIG's LXG laser-engraved grip module with interchangeable backstraps, a removable flared magwell, fiber-optic/black serrated sights, and a full-length 1913 accessory rail. Three 10-round magazines are included, and a SIG Sauer FOXTROT1X weapon light comes installed.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Minimal handling marks are present. The bore is bright and clean. Please refer to the photos for close-ups.
What's Included
- SIG Sauer factory hard case with model/serial label
- SIG Sauer Safety Instructions & Owner's Manual
- SIG Sauer FOXTROT1X weapon-mounted white light (installed)
- Two additional interchangeable backstraps for the P365 LXG grip module
- Three 10-round steel P365 magazines (mix includes one extended-length and two compact-length bodies)
The FUSE treatment extends the P365 slide and barrel to 4.3 in, delivering a longer sight radius on a stainless slide finished in Nitron. The slide is optics-ready with a cover plate and features front and rear serrations plus muzzle relief cuts for a purposeful profile.
The carbon-steel barrel wears a durable DLC finish. Inside, rifling is crisp, and overall bore condition is excellent, matching the pistol's lightly handled exterior.
Ergonomics are enhanced by the LXG laser-engraved texture grip module and interchangeable backstraps, paired with a removable flared magwell to streamline reloads. The striker-fired action uses a flat-faced, nickel-plated trigger and omits a manual safety as specified.
Sight alignment is fast and uncluttered via a green fiber-optic front and a black serrated rear. A full-length 1913 accessory rail with multiple slots provides broad light/laser compatibility, and this pistol arrives with a SIG Sauer Foxtrot1 family light installed — the FOXTROT1X — for immediate illumination capability.
This 10-round configuration (mfg part number 365XF-9-BFO-10) is a recent release, assembled in the USA, and ships with three 10-round magazines as noted. The case label matches the SKU for this compliant package.




