Transform your standard P365 into a higher-capacity, optics-ready crossover carry platform with the SIG Sauer P365-FUSE Caliber X-CHANGE Kit. Designed for non–manual safety P365 frames, this complete conversion kit upgrades your pistol to the larger P365-XMACRO grip module paired with a 4.3" P365-FUSE slide assembly, delivering enhanced control, capacity, and shootability while maintaining the P365’s signature concealability.

The extended FUSE-length 6 7/8" optic-ready slide offers an increased sight radius for faster target acquisition and improved accuracy. Outfitted with XRAY3 Day/Night sights and a 4.3" DLC-finished carbon steel barrel, this kit maximizes ballistic performance from modern defensive 9mm ammunition, providing higher velocities and reliable expansion on target.

Comfort and ergonomics are fully customizable with included Small, Medium, and Large interchangeable backstraps, while the P365-XMACRO grip module features a 1913 accessory rail for lights or lasers. The kit also includes one 17-round and one 21-round steel magazine, giving you duty-ready capacity options right out of the box.

Bring full-size performance to your micro-compact platform—without sacrificing concealment. The P365-FUSE Caliber X-CHANGE Kit delivers the perfect balance of capacity, control, and carry-friendly versatility.

Key Features

• Converts standard P365 to XMACRO-size configuration

• FUSE-length optic-ready slide with aggressive serrations

• 4.3" DLC-coated carbon steel barrel

• XRAY3 Day/Night sights installed

• P365-XMACRO grip module with M1913 accessory rail

• SIG-LOC Compact & Compact Shield RMS-c optic footprint

• Includes (1) 17-round and (1) 21-round 9mm steel magazines

• Interchangeable S/M/L backstraps included

• Designed for non–manual safety FCUs

Note: Grip module does not accommodate manual safety FCUs.