The Radian Weapons Backstrap + Magwell Combo for Sig Sauer P365 X-Macro flares the magazine opening on your pistol's grip for faster, more positive reloads under stress. Machined to a clean, low-profile fit that blends with the frame. Key Features Funnels the mag well for quicker, fumble-free magazine changes Built from precision-machined aluminum for durability and a precise frame fit Low-profile design that stays concealable for carry Simple install with the included hardware Fitment Fits Sig Sauer P365 X-Macro.