Precision fit for AR-15 / M16 rifles; Material: OverMolded(R) rubber with finger grooves; Texture: Cobblestone(TM); Color: Slate Gray; Virtually impervious to all oils and solvents associated with firearms; Gentle palm swells fit comfortably in hand; Finger grooves naturally position fingers for optimal grip; Textured with Hogue's famous Cobblestone pattern for an efficient non-slip, non-irritating stippled grip; Beavertail(TM) cushions the hand on recoil and offers increased hand comfort higher on the frame; Made from long-lasting, durable, thermoplastic elastomer that ages gracefully for years of service