MAKE ME A REASONABLE OFFER! The Safariland SLS Tactical Holster, Heckler & Koch Mark 23, Left Hand, STX Tactical, Black, 6005-94-122 Color: Black, Gun Make: Heckler & Koch, Gun Model: Heckler & Koch Mark 23, Barrel Length: 5.87 in, Holster Material: Hard Polymer, Hand: Left, Holster Type: Drop Leg Holster, Thigh Holster, Finish: STX Tactical, Fastener/Closure Type: SLS – Self Locking System, Holster Application: Tactical, Holster Finish: STX Tactical, Quantity: 1. Safariland 6005-94-122 : 6005 SLS Tactical Holster w/Quick Release, H&K Off Handgun For Navy-Mk 23 in. STX Tactical, Black, Left Hand. Specifications for Safariland SLS Tactical Holster, Heckler & Koch Mark 23, Left Hand, STX Tactical, Black, 6005-94-122. Heckler & Koch Mark 23. Drop Leg Holster, Thigh Holster. SLS – Self Locking System.