Red Dot Sight Compatible Compact Light Compatible ALS (Automatic Locking System) provides straight-up draw motion Open-top design without SLS for quick retrieval of weapon Two-Piece reinforced holster body for increased strength The Safariland Solis Holster combines the security of ALS with the release speed and draw simplicity of an open-top design. Solis is compatible with most compact red dot sights and subcompact lights. The ALS secures your weapon automatically as it is holstered, yet still allows a fast, natural draw with the swipe of the thumb release as you acquire your shooting grip. Built from durable, weather- and temperature-resistant SafariSeven non-marking nylon blend, Solis will not scratch or mar the finish of your firearm. The holster's open muzzle end design allows for easy debris removal or accommodates threaded barrels. Gun fit: Glock 19 Gen 3-4/Glock 19 Gen 5/Glock 19 MOS Gen 3-4/Glock 19/Glock 19X MOS Gen 5 w/TLR-7/7A