Safariland 6304 ALS/SLS Drop-Leg Tactical Holster SIG Sauer P226R DA/SA Full Size Hammer Single Strap Leg Shroud Right FDE Brown. The ALS (Automatic Locking System) secures the firearm upon holstering while the SLS (Self Locking System) clicks into place for additional safety. Both mechanisms release quickly to allow a smooth efficient draw when every second counts. Specifications for Safariland 6304 ALS/SLS Drop-Leg Tactical Holster: Manufacturer: Safariland Holster Material: SafariLaminate Accessory Attachment System: Strap Holster Type: Drop Leg Holster Thigh Holster Condition: New Application: Tactical Features of Safariland 6304 ALS/SLS Drop-Leg Tactical Holster ALS (Automatic Locking System) secures weapon once holstered SLS allows for a smoother single motion draw and greater protection against attempted weapon takeaways Hood Guard is standard; optional Sentry available Simple straight up draw once all releases are deactivated Suede lined to protect handgun's finish Package Contents: Safariland 6304 ALS/SLS Drop-Leg Tactical Holster What firearm models does the manufacturer say Safariland 6304 ALS/SLS Drop-Leg Tactical Holster is compatible with? The manufacturer says that Safariland 6304 ALS/SLS Drop-Leg Tactical Holster is compatible with Glock 17 Glock 22 SIG Sauer P226R Glock 17 Gen 5 Glock 22C Gen 1 Glock 47 Gen 5 Glock 47 Gen 4 Glock 47 Gen 3 Glock 22C Gen 4 Glock 22C Gen 3 Glock 22C Gen 2 Glock 17C Glock 31 SIG Sauer P320 Glock 22 Gen 5 Glock 34 Gen 5 Glock 41 Glock 19 Gen 5Safariland 1170410: 6304 ALS/SLS Drop-Leg Tactical Holster SIG Sauer P226R DA/SA Full Size Hammer Single Strap Leg Shroud Right FDE Brown