Model 6365RDS ALS/SLS Low-Ride, Level III Retention Duty HolsterThe 6365RDS holster is specifically designed for firearms with red dot sights mounted to them. This holster with Automatic Locking System (ALS) builds on the foundation of the Self Locking System (SLS). It locks the weapon in all directions upon holstering, it's operable with the thumb, and the weapon can be drawn straight out of the holster with no twisting required.