BLACKHAWK CQC SERPA Holster With Belt and Paddle Attachment, Fits Glock 17/22/31, Left Hand, Carbon Fiber, Black 410500BK-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.