The Hogue AR-15 Pistol Grip is constructed from fiberglass with overmolded soft rubber. Fits firearms with standard right-handed safeties only, will not work with ambidextrous safeties. Features a cobblestone patterned grip, finger grooves, and palm swells for a secure, comfortable hold.Features:Finger grooves naturally position fingers;Textured with Hogue's Cobblestone pattern for a non-silip, stippled grip;Made from a durable, thermoplastic elastomer;Resists oils and solvents associated with firearms;Does not include mounting hardware