P365 Fuse RXX | 9mm | Romeo-X | 21rd Pistol

The Sig Sauer P365-FUSE (MPN: 365XF-9-BFO-RXX) is the pinnacle of the P365 evolution, blurring the lines between a full-size duty pistol and a concealable carry gun. This specific package comes factory-equipped with the ROMEO-X Compact Red Dot, offering a turnkey solution for shooters who demand maximum barrel length, increased capacity, and rapid target acquisition in a slim, 1-inch wide profile.

Why the P365-FUSE Redefines Concealed Carry

The "FUSE" model is built on the LXG (Macro) grip module but features a longer 4.3-inch barrel and slide. This provides a full-size sight radius and increased muzzle velocity, typically reserved for duty pistols, while maintaining the remarkably thin footprint that made the P365 series a global phenomenon.

Key Performance Features

• Factory Installed ROMEO-X Compact: Built with a 7075 aluminum housing and a low deck height, the ROMEO-X allows for a co-witness with the iron sights and features a crisp 2 MOA dot/32 MOA circle reticle.

• 4.3” Carbon Steel Barrel: The extended barrel length maximizes the ballistic potential of 9mm defensive rounds and improves accuracy through a longer sight radius.

• Aggressive LXG Grip Module: The laser-engraved grip texture provides a secure, non-slip hold in all weather conditions, ensuring the pistol stays anchored in your hand during rapid fire.

• Massive Capacity: Ships with two 21-round magazines and one 17-round magazine, giving you a staggering 21+1 payload in a concealable package.

• Nickel-Teflon Finished FCU: The Fire Control Unit features a smooth, consistent flat-face trigger for a crisp break and a positive reset.

• Optic-Ready Long Slide: The serrated slide is designed for easy manipulation and is specifically balanced to cycle reliably with the added weight of an optic.

Optimized for Performance and Protection

The P365-FUSE is designed for the shooter who wants "more." More velocity, more capacity, and more precision. The included ROMEO-X optic features Side Battery Access, meaning you never have to remove the optic (or re-zero) to change the battery. Combined with MOTAC (Motion Activated Illumination), your red dot is always ready the moment you draw.