Wide durable clip to keep your gun in place; No modification; Easy to conceal; Lightweight; Compatible with all M&P SHIELD .9MM .40 models; Not compatible with other M&P models; Fast installation; Eliminates bulk; Backed by a Money Back Guarantee and Lifetime Warranty; Comes with (Black) Milled billet back plate, screws and an allen key; You can stash your pistol in your pocket, on your waist, or even in the small of your back; Serrations along the clip; Newly redesigned slide backplate