Superior quality Russian made lightweight RTM Izborsk aluminum forward grip. Weight is only 47g. Length is 60mm, size 29x36mm (1,1″x1,4″). Quick & Easy Installation. No gunsmith or modification required. Will fit M-Lok Has inner compartment. Grip is anodized and painted with rugged Taiga weapon paint. While being made of aluminum, the grip weights less then many polymer ones.