BLACKHAWK CQC SERPA Holster With Belt and Paddle Attachment, Fits Glock 26/27/33, Left Hand, Black 410501BK-L Featuring their patented SERPA Auto-Lock(TM) technology, the SERPA CQC Concealment Holster delivers a smooth draw, easy re-holster and unparalleled handgun security in a sleek package that is perfect for concealed carry. Features a passive retention detent adjustment screw, and a speed-cut design for rapid draw, target acquisition and re-holstering.