TandemKross Companion Extended Magazine Bumper Features The TandemKross Companion Extended Magazine Bumper solves a common complaint with the Ruger 10/22 rotary magazine which sits nearly flush with the magazine well and can be difficult to grip when it needs to come out quickly. The extended bumper adds material to the base of the magazine giving the fingers something substantial to pinch during a reload or a magazine swap. This is especially useful in timed competition or training environments where every second counts. The bumper is built specifically to work with standard 10-round Ruger rotary magazines so fitment is direct and consistent. Made from Zytel a highly durable engineering polymer the bumper resists the wear and impact that comes from repeated drops and reloads. Installation requires no permanent modification to the magazine or the firearm itself so the change is fully reversible. Each package includes two bumpers in black enough to outfit a pair of magazines right out of the box. TandemKross backs the Companion Bumper like the rest of its lineup with a lifetime guarantee and USA manufacturing. TANDEMKROSS Companion Extended Magazine Bumper Specifications Manufacturer: TandemKross Model: Companion Extended Magazine Bumper Compatible Hosts: Ruger 10/22 10-Round Rotary Magazines Color: Black Material: Zytel Polymer Quantity: 2 Pack Width: 5 Weight: 0.5 oz Available At: GrabAGun