SIG Sauer P365 FUSE 9mm — 4.3 in DLC Barrel, Snakebite Bronze Slide, RMSc Footprint, 21+1 Capacity
The SIG Sauer P365 FUSE stands out as the longest-slide P365 variant, introduced in 2024 with a 4.3-inch barrel and an optics-cut slide in the RMSc/ROMEO-X Compact footprint. This two-tone model pairs a Snakebite bronze/tan stainless-steel slide with a black LXG-textured grip module, and it comes with both 21- and 17-round factory magazines for a maximum capacity of 21+1. U.S. manufacture is noted on the case label dated 24-Oct-2025.
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: Minimal markings from previous handling and use are visible on close inspection. Please refer to the photos for a clear view of exterior surfaces and edges.
What’s Included
- SIG Sauer factory hard case
- SIG Sauer owner's manual
- Two 21-round SIG Sauer factory steel magazines
- Two 17-round SIG Sauer factory steel magazines
- Cable lock with keys
- Dawson Precision fiber-optic spare rod packet
The FUSE configuration extends the P365 line with a 4.3-inch carbon-steel barrel featuring a DLC finish and standard crown, delivering the longest slide and barrel length in the series. The slide includes front and rear cocking serrations, relief cuts near the muzzle, and an optic cut in the RMSc/ROMEO-X Compact pattern with a cover plate installed.
The two-tone finish pairs a Snakebite bronze/tan slide with a black polymer frame. The LXG laser-engraved grip module enhances purchase and includes a removable flared magwell. A full-length M1913 accessory rail with three slots provides mounting space for compatible lights or accessories.
Sight alignment is straightforward with a Dawson Precision green fiber-optic front and a plain serrated square-notch rear. The flat-faced trigger complements the striker-fired action for a consistent pull.
This P365 FUSE is configured for high capacity and range time, shipping with two 21-round and two 17-round factory magazines. Overall length is about 7.2 inches with an unloaded weight around 23 ounces, and the pistol is U.S.-made under part number 365XF-9-BFO-SB.