Designed for use with 1913 Picatinny railed hand guards, Magpul's RVG is a basic, lightweight, cost-effective vertical fore grip. Shape is ergonomically designed for use as a traditional vertical grip. It has also been optimized for use with the "thumb break method" of shooting as taught by Magpul DynamicsSM. Includes all mounting hardware plus a universal mounting rail for custom fitting to many factory plastic hand guards. | Magpul RVG Rail Vertical Grip