Compatible with M-LOK. Hybrid design combines the 45 degree and vertical foregrip into one superior grip. Delivers the full range of support hand positions for improved weapon control and optimal shooting preference. Made from long-lasting, durable, thermoplastic elastomer that ages gracefully for years of service. Textured with Hogue's famous Cobblestone pattern for an efficient non-slip, non-irritating stippled grip. Virtually impervious to all oils and solvents associated with firearms. Includes captive Allen mounting screws