The Cytac R-Defender is a quick release holster and is made of military quality polymer suitable for the Glock 17/22/31 Gen 1,2,3,4 and Glock 17 Gen 5. New to the Gen 4 is the release button is recessed and continues nicely into the design with a recess for the finger and that the Glock Gen 5 now fits in it. This holster can also be attached to the Paddle (delivered as standard), Molle Attachment, Belt Loop, Belt Clip, Drop Leg Platform, Shoulder Harness and Single Shoulder Harness. The holster can rotate 360 degrees, this is easy to do using the supplied Allen key. The R-Defender holster is perfect for police and security units, target shooting, airsoft and IPSC. This holster is suitable for left-handed people