The 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 with the thumb, making it very instinctive to use. And finally, once the device is de-activated a simple straight up draw can be used. Key to comfort and stability are the lightweight double leg strap and the leg shroud. SafariSuede lining helps protect the gun's sights and finish. Gun fit: Sig Sauer P320 RX 9C ITI M3 Sig Sauer P320 RX 9C Streamlight TLR-1 Sig Sauer P320 RX 9C Streamlight TLR-1HL Sig Sauer P320 RX 9C SureFire X200 Sig Sauer P320 RX 9C SureFire X300 Sig Sauer P320 RX 9C SureFire X300U Sig Sauer P320 RX 9C Leupold Deltapoint Sig Sauer P320 RX 9C Trijicon RMR Sig Sauer P320 RX 9C Dr. Optic Sig Sauer P320 RX 9C J Point Sig Sauer P320 RX 9C Vortex Viper Sig Sauer P320 RX 9C Burris FastFire Sig Sauer P320 RX 9C Inforce APL Sig Sauer P320 RX 9C Nightstick TWM-350 Sig Sauer P320 RX 9C Nightstick TWM-350S Sig Sauer P320 RX 9C Nightstick TWM-850 Sig Sauer P320 RX 9C Nightstick TWM-850S Sig Sauer P320 RX 40C ITI M3 Sig Sauer P320 RX 40C Streamlight TLR-1 Sig Sauer P320 RX 40C Streamlight TLR-1HL Sig Sauer P320 RX 40C SureFire X200 Sig Sauer P320 RX 40C SureFire X300 Sig Sauer P320 RX 40C SureFire X300U Sig Sauer P320 RX 40C Leupold Deltapoint Sig Sauer P320 RX 40C Trijicon RMR Sig Sauer P320 RX 40C Dr. Optic Sig Sauer P320 RX 40C J Point Sig Sauer P320 RX 40C Vortex Viper Sig Sauer P320 RX 40C Burris FastFire Sig Sauer P320 RX 40C Inforce APL Sig Sauer P320 RX 40C Nightstick TWM-350 Sig Sauer P320 RX 40C Nightstick TWM-350S Sig Sauer P320 RX 40C Nightstick TWM-850 Sig Sauer P320 RX 40C Nightstick TWM-850S Sig Sauer P320 RX Carry 9 ITI M3 Sig Sauer P320 RX Carry 9 Streamlight TLR-1 Sig Sauer P320 RX Carry 9 Streamlight TLR-1HL Sig Sauer P320 RX Carry 9 SureFire X200 Sig Sauer P320 RX Carry 9 SureFire X300 Sig Sauer P320 RX Carry 9 SureFire X300U Sig Sauer P320 RX Carry 9 Leupold Deltapoint Sig Sauer P320 RX Carry 9 Trijicon RMR Sig Sauer P320 RX Carry 9 Dr. Optic Sig Sauer P320 RX Carry 9 J Point Sig Sauer P320 RX Carry 9 Vortex Viper Sig Sauer P320 RX Carry 9 Burris FastFire Sig Sauer P320 RX Carry 9 Inforce APL Sig Sauer P320 RX Carry 9 Nightstick TWM-350 Sig Sauer P320 RX Carry 9 Nightstick TWM-350S Sig Sauer P320 RX Carry 9 Nightstick TWM-850 Sig Sauer P320 RX Carry 9 Nightstick TWM-850S Sig Sauer P320 RX Carry 40 ITI M3 Sig Sauer P320 RX Carry 40 Streamlight TLR-1 Sig Sauer P320 RX Carry 40 Streamlight TLR-1HL Sig Sauer P320 RX Carry 40 SureFire X200 Sig Sauer P320 RX Carry 40 SureFire X300 Sig Sauer P320 RX Carry 40 SureFire X300U Sig Sauer P320 RX Carry 40 Leupold Deltapoint Sig Sauer P320 RX Carry 40 Trijicon RMR Sig Sauer P320 RX Carry 40 Dr. Optic Sig Sauer P320 RX Carry 40 J Point Sig Sauer P320 RX Carry 40 Vortex Viper Sig Sauer P320 RX Carry 40 Burris FastFire Sig Sauer P320 RX Carry 40 Inforce APL Sig Sauer P320 RX Carry 40 Nightstick TWM-350 Sig Sauer P320 RX Carry 40 Nightstick TWM-350S Sig Sauer P320 RX Carry 40 Nightstick TWM-850 Sig Sauer P320 RX Carry 40 Nightstick TWM-850S Sig Sauer P320 X-Carry 9 ITI M3 Sig Sauer P320 X-Carry 9 Streamlight TLR-1 Sig Sauer P320 X-Carry 9 Streamlight TLR-1HL Sig Sauer P320 X-Carry 9 SureFire X200 Sig Sauer P320 X-Carry 9 SureFire X300 Sig Sauer P320 X-Carry 9 SureFire X300U Sig Sauer P320 X-Carry 9 Leupold Deltapoint Sig Sauer P320 X-Carry 9 Trijicon RMR Sig Sauer P320 X-Carry 9 Dr. Op