New Level 3 Retention Black Holster for Glock 17/22/28/31 Pistols Gen 4 Compatible (1410) Designed for military and police personnel. good for civilians and off duty officers Dual-Safety Retention system with zero time to disengage Easily depress lever to remove firearm Tension screw adjusts with a simple allen key (included) Rotates 360 degrees for every application (small of back, cross draw)