The SENTRY Hexmag 10 round magazine is ideal for any sport competitor or tactical shooters demanding superior strength proven reliability and exceptional value. Patented design for better grip other features include; redesigned feed lip geometry to maximize strength and versatility stripper clip guides for faster reloading deep catch pocket for rock-solid stability and a heat-treated stainless steel spring for extended storage periods.This AR15 magazine also features the SENTRY patented Tool-Less Design for fast and easy floorplate removal allowing field cleaning and HexID color customization. Incorporates the industry's most popular and functional accessories including Hexmag Grip Tape and Hexmag HexID Color Ammunition Identification System. Is this the best AR magazine on the market? You decide with a no questions asked LIFETIME GUARANTEE!Features / Specifications: CALIBERS: .223/5.56x45mm .300AAC Blackout .458 SOCOM .50 Beowulf and more RIFLES: AR-15s SCAR 16 IWI Tavor CZ Bren Beretta ARX 100 and more CAPACITY: 10 CONSTRUCTION: PolyHex2 Advanced Composite COLORS: Black FDE Gray OD Green. Can be assembled custom with HexID colors Made in the U.S.A. LIFETIME GUARANTEE