Safariland Model 6354do Als Optic Tactical Holster For Glock 19 Gens 1-4 W/ Light . The Safariland Holster features an adjustable leg strap that allows you to set the drop of the leg strap to your leg preference and enables you to position the weapon holster where you feel the most comfortable. The Safariland Holster also features a double leg strap that allows you to put the handgun on "anywhere your legs allow" - excellent for operators who need stability and agility in all directions. This holsters features a three-hole pattern that allows you to mount in a variety of configurations with the use of the Quick Locking System (qls). The Safariland Holster 6354do for Red Dot Optics holster also has the option of an automatic Light Retractor (ALO) that provides light when your sight is 'on'. Package Contents: Safariland Model 6354do Als Optic Tactical Holster For Red Dot Optic