The 6360RDS holster is specifically designed for firearms with red dot sights mounted to them. This holster with the 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. Gun fit: Glock 17 MOS ITI M3 Glock 17 MOS Streamlight TLR-1 Glock 17 MOS Vortex Viper Glock 17 MOS Burris FastFire Glock 17 MOS Inforce APL Glock 17 MOS Nightstick TWM-350 Glock 17 MOS Nightstick TWM-350S Glock 17 MOS Nightstick TWM-850 Glock 17 MOS Nightstick TWM-850S Glock 17 MOS Streamlight TLR-1HL Glock 17 MOS SureFire X200 Glock 17 MOS SureFire X300 Glock 17 MOS SureFire X300U Glock 17 MOS Leupold Deltapoint Glock 17 MOS Trijicon RMR Glock 17 MOS Dr. Optic Glock 17 MOS J Point