Level III Retention, ALS (Automatic Locking System) secures weapon once holstered, also features the SLS (Self Locking System) Rotating Hood Low-Ride level Mid-Ride, this slim, compact design allows weapon to ride close to the body Simple straight up draw once all releases are deactivated 2.25" (58mm) belt slots Fits: Glock 20, 21 with Standard Glock Rails with ITI Streamlight M3, M3X, TLR-1, SSL-1, Surefire X200, X300, or LAS-TAC 2 Level III Retention Holster with ALS (Automatic Locking System) and Hood Guard Mid-ride belt position with slim, compact design allowing weapon to ride close to body Constructed from thermal molded SafariLaminate materials