Blackhawk’s Serpa Sportster Holster is designed for civilian concealed carry or range use. Constructed of injection molded polymer for long-lasting durability with the patented Auto-Lock technology. Features- passive retention detent adjustment screw; speed-cut design for rapid draw, target acquisition and re-holster; paddle platform and the “L” shaped button which is optimized for security and performance. Fits Shoulder, S.T.R.I.K.E., Quick Disconnect and Tactical Holster Platforms. Fits Glock 17/22/31/47 except Gen5 40 cal.