ALS (Automatic Locking System) secures weapon once holstered SLS (Self Locking System) Rotating Hood Slim, compact design allows weapon to ride close to body 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. The mid-ride belt loop allows the holster to ride close to the body. The suede lining helps protect the gun's sights and finish. Durable leather look SafariLaminate construction with leather look finish. Gun fit: H&K VP9 ITI M3 H&K VP9 Streamlight TLR-1 H&K VP9 Nightstick TWM-850S H&K VP9 Streamlight TLR-1HL H&K VP9 SureFire X200 H&K VP9 SureFire X300 H&K VP9 SureFire X300U H&K VP9 Inforce APL H&K VP9 Nightstick TWM-350 H&K VP9 Nightstick TWM-350S H&K VP9 Nightstick TWM-850