Springer Precision has designed these slide rackers in both carry/duty and competition models for Glock and Springfield XD-XDm handguns. The Carry/Duty models feature a lip off both sides of the slide to allow for easier grasp of the slide or to allow you to rack the slide off your belt, pocket or other objects. The Competition models have one appoximately 1/2" lip off the left side of the slide for fast manipulations. Replaces your striker retainer plate. Mfg: Springer Precision