Sig Sauer P365 FUSE COMP | 9mm | 3.7 in | 365XF-9-COMP

The Sig Sauer P365 FUSE COMP is a compact, optic-ready 9mm pistol equipped with a slide-integrated expansion chamber and a 3.7 inch barrel to help manage muzzle rise and recoil for faster follow-up shots. The firearm ships from the factory with a sealed ROMEO‑X SIG‑LOC enclosed optic mounted under the slide for a low deck height and standard-height iron sight co-witness. A polymer grip module with interchangeable backstraps and an accessory-ready 1913 rail provides ergonomic customization and utility. For an alternative sighting option under $1,000, a low-profile SIG Sauer ROMEO1 red-dot pairs well with the P365 Fuse Comp’s footprint and co-witness profile.

Product Specifications

• The manufacturer is Sig Sauer.
• The model is listed as P365XF / P365 FUSE COMP.
• The caliber is 9mm.
• The barrel measures 3.7 inches.
• The slide features a slide-integrated expansion chamber (compensator) to reduce muzzle rise.
• The firearm ships with a factory-mounted ROMEO‑X SIG‑LOC enclosed optic.
• The grip module material is polymer with interchangeable small, medium and large backstraps.
• The slide finish is Nitron and slide material is listed as stainless steel.
• The action is semi-automatic, striker-fired.
• The sights are X‑RAY3 day/night sights (front night, fixed rear).
• Included magazines are described in the factory literature as (1) 17‑round and (2) 21‑round steel magazines.
• The overall length is 7.2 inches, overall height is 5.2 inches, and overall width is 1.4 inches.
• The sight radius is 5.5 inches.
• The weight with magazine is listed as 22.9 oz.
• UPC: 798681741298.

The P365 Fuse Comp brings the compact P365 platform’s concealability and handling into a package focused on controllability and fast follow-up shots. The factory ROMEO‑X enclosed optic and low deck height ensure a stout optic mounting solution while the polymer grip and accessory rail let you tailor the pistol to practical carry and everyday use. This configuration fits shooters seeking a compact 9mm with built-in compensator features and an enclosed optic ready out of the box.

Related Videos: