Hexmag HX30ARBLK Series 2 AR-15 Multi-Caliber 30 Round Composite Black Finish. The Hex Series 2, 30rd magazine is ideal for any sport, competitor or tactical shooter demanding superior strength, proven reliability and exceptional value. Features include- redesigned feed lip geometry to maximize strength and versatility, stripper clip guides for faster reloading and deep catch pocket for rock-solid stability. One of the industry's only true tool-less designs for easy floorplate removal allowing field cleaning and HexID color customization. Incorporates accessories including Hexmag Grip Tape and Sentry HexID Color Ammunition Identification System. Use with calibers- .223/5.56x45mm, .300AAC Blackout, .458 SOCOM, .50 Beowulf and more. Used with rifles- AR-15s, SCAR 16, IWI Tavor, CZ Bren, Beretta ARX 100 and more.