This grip safety will improve the comfort and controllability of your 1911. It allows the shooting hand to be positioned closer to the plane of the bore while spreading the recoil over a broad rounded surface. The bottom features Wilson's raised "Posi-Release" tab, which assures positive grip safety disengagement while serving as a grip memory point each time you draw your gun. The top has a hammer pocket, which makes the gun more snag-free by allowing a commander or bobbed spur hammer to sit down in the beavertail while cocked. Frame modification is required. Fitting jig is available (298-932). The concealment version of this safety is simply a scaled version of the full size version which makes concealment easier.