Upgrade control, consistency, and concealability with the Radian Backstrap and Magwell for Sig Sauer P365 X-Macro pistols. Designed as a unified system, this combo enhances grip, improves reload speed, and supports more accurate, confident shootingall without sacrificing comfort or carry efficiency. Deep channels along the backstrap increase surface contact for a secure grip while remaining comfortable during extended use. A subtle palm swell promotes a natural, repeatable hand position that translates into better recoil management, faster follow-up shots, and greater overall performance under pressure. The integrated magwell offers another vital point of contact at the base of the grip, guiding the hand into ideal placement and improving weapon retention. Flared feed walls streamline both tactical and administrative reloads, and a low-profile silhouette keeps printing to a minimum during concealed carry. The system fits all OEM P365 X-Macro magazines and their extensions without modification. No screws. No backing out. No compromise. The precision-machined dovetail interface and patent-pending ANGLE-LOK spring-loaded retention stud lock the backstrap and magwell firmly in place for a rock-solid install that holds up over time. Radian Weapon Systems Backstrap with Magwell for Sig Sauer P365 X-Macro Pistols also includes retention stud with spring, and retention stud tool. Enhances control, consistency, and concealability Subtle palm swell for natural hand position Integrated magwell guides hand placement and improves retention Flared feed walls streamline reloads Low-profile silhouette minimizes printing during concealed carry Fits all OEM P365 X-Macro magazines and extensions