Safariland Model 6360rds Als/sls Mid-ride Level Iii Retention Duty Holster For Glock 19 Gens 1-4 W/ Light/laser Black . 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. Specifications for Safariland 6360RDS ALS/SLS Mid-Ride Level III Retention Duty Holster: Manufacturer: Safariland Color: Black Gun Make: Glock Gun Model: Glock 19 MOS Gen 4 Glock 19 MOS Gen 5 Holster Type: Outside the Waistband Holster Holster Material: SafariLaminate Light/Laser Attachment: Streamlight TLR-2HL Burris FastFire Dr. Optic Leupold Deltapoint PRO Vortex Viper Trijicon RMR Streamlight TLR-2 Accessory Attachment System: Belt Loop Application: Duty Fastener/Closure Type: SLS - Self Locking System ALS - Automatic Locking System Age Group: Adults Retention Level: Level III Features of Safariland 6360RDS ALS/SLS Mid-Ride Level III Retention Duty Holster ALS - (Automatic Locking Systems) secures weapon once holstered; simple straight up draw once release is deactivated SLS - (Self Locking Systems) Rotating Hood For use with red dot optic-equipped weapons SafariLaminate thermal-molded construction protects handgun and sights Suede lined to protect handgun's finish Package Contents: Safariland 6360RDS ALS/SLS Mid-Ride Level III Retention Duty Holster What firearm models does the manufacturer say Safariland 6360RDS ALS/SLS Mid-Ride Level III Retention Duty Holster is compatible with? The manufacturer suggests that Safariland 6360RDS ALS/SLS Mid-Ride Level III Retention Duty Holster is compatible with Glock 19 MOS Gen 4 Glock 19 MOS Gen