Stainless steel 8-round KimPro Tac-Mag for 1911 .45 ACP pistols with full-length grip. A KimPro Tac-Mag maximizes the performance of any 1911 pistol. Premium features include Teflon-coated stainless steel follower, Rocket wire spring and large round-count recognition holes . An exclusive quick-change floorplate permits the immediate attachment of one of three included bases - a conventional stainless steel plate, slim bumper pad for carry or a thick bumper pad for competition or use with extended magazine wells. Compatability: Kimber Custom, Pro, Ultra+ and other models with full-length grip, Colt Government and Commander models, plus almost any brand and model of mil-spec 1911.