The HEXMAG AR-15/M4/M16 Shorty 20 round magazine is ideal for any sport, competitor or tactical shooters 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, a deep catch pocket for rock-solid stability, one of the industry's only true tool-less designs for easy cleaning, heat-treated stainless steel spring for extended storage periods.