Radian Weapons R0837 SIG P365-XMACRO Aluminum Backstrap & Magwell - Bronze

The Radian Weapons R0837 Backstrap and Magazine Well Kit is designed specifically for the SIG Sauer P365-XMACRO grip module. It combines a contoured replacement backstrap with a low-profile flared magazine well to support repeatable hand placement and guide the magazine during tactical or administrative magazine changes.

Both components are precision-machined aluminum with a bronze finish. Deep channels in the backstrap increase contact area, while its contoured palm swell promotes consistent grip positioning. The magazine well uses enhanced feed walls to guide magazine insertion while maintaining a profile intended to reduce printing and snagging during holstering or unholstering.

The kit installs through a machined dovetail interface with a spring-loaded retention stud, so no mounting screws are used. It is compatible with OEM SIG P365-XMACRO magazines equipped with OEM base plates or extensions. The assembled accessory dimensions are listed as 5.10" long and 3.70" wide.

This new accessory kit includes:

• One backstrap
• One magazine well
• One retention stud with spring
• One retention-stud installation tool

No firearm or magazine is included.