Sig Sauer X-Change Kit M18 9mm Luger 3.9" Coyote Tan 17/21 Rd

The Sig Sauer X-Change Kit is a factory Caliber X-Change conversion package that reconfigures your existing P320 pistol into the M18 carry configuration in 9mm Luger. The M18 is the sidearm recently adopted across all branches of the U.S. Military, and this kit lets you run that same proven setup on a P320 chassis you already own.

This kit ships complete with a Coyote Tan P320 slide assembly featuring a 3.9" barrel and recoil spring assembly, paired with a matching Coyote Tan polymer grip module. The slide is factory reflex-optic-cut to mount Sig Sauer red dots directly, with standard 3-Dot sights installed. The M18 configuration is a no-manual-safety setup using the standard P320 takedown and controls, built for right-hand shooters.

Three factory magazines are included to get you on the range immediately: one 17-round flush-fit magazine and two 21-round extended magazines. With a maximum capacity of 21+1 rounds, this kit provides substantial firepower in a carry-sized package.

Manufactured in the USA by Sig Sauer, the M18 Caliber X-Change Kit is the factory-supported way to configure your P320 to the M18 carry setup without purchasing a complete new pistol.