Safariland Model 6354rds Als Tactical Holster For Sig Sauer P320 Rx 9c W/ LightThe 6354RDS holster is specifically designed for firearms with red dot sights mounted to them. This model features the Automatic Locking System (ALS), an internal locking device that retains the weapon in all directions providing secure retention in an open top holster for tactical use. With ALS, once the weapon is holstered, it ''locks'' into place, providing an extra measure of security for the weapon. Further, the holster is completely operable