This is a Magpul Industries Vertical Foregrip known as the RVG- Rail Vertical Grip, model MAG412-GRY.
Designed for use with 1913 Picatinny railed hand guards" the RVG is a basic" light weight" 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.
Features:
Made in the U.S.A.
Attaches to MOE Handguards
Hardware included