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

The Sig Sauer P365 FUSE Comp is an optics-ready compact striker-fired pistol chambered in 9mm with a 3.7-inch barrel and a compensated slide for reduced perceived muzzle rise. It ships configured with the ROMEO‑X SIG‑LOC compact red-dot optic and multiple magazines, and features a polymer grip module with interchangeable backstraps. This configuration is suited to everyday carry and concealed carry, and also performs well for range training with a micro‑red dot.

A compact micro red dot that pairs well and stays under $1,000 is the Holosun 507K; its footprint and low-profile form factor complement the P365 FUSE Comp’s ROMEO‑X SIG‑LOC mounting architecture. Consider a micro red dot of equivalent footprint for co-witness or low‑deck mounting.

Product Specifications

• The manufacturer is listed as Sig Sauer.
• The model is identified as P365XF / P365 FUSE COMP.
• The caliber is specified as 9mm.
• The barrel length is 3.7 inches.
• The overall length is 7.2 inches.
• The overall height is 5.7 inches.
• The overall width is 1.4 inches.
• The slide finish is Nitron and the slide material is stainless steel.
• The fire control unit material is stainless steel and the grip module material is polymer.
• The action type is semi-automatic, striker-fired.
• The firearm is shipped optics-ready with a ROMEO‑X SIG‑LOC compact red-dot installed.
• The sighting system includes X-RAY 3 day/night sights (co-witness capable with the installed optic).
• The package includes magazines as described by the manufacturer: one 17-round and two 21-round steel magazines.
• The muzzle is equipped with a compensator integrated into the slide profile.
• The UPC is 798681741311.

This P365 FUSE Comp configuration combines Sig Sauer’s compact ergonomics with an optics-ready slide and higher-capacity magazine options, providing a versatile package for everyday carry and focused range sessions. The polymer grip module with interchangeable backstraps helps tailor fit and control, while the factory-installed ROMEO‑X SIG‑LOC optic and X-RAY 3 sights give a practical aiming solution straight from the box.

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