Blackhawk ambidextrous holster lets you choose how you want to use it on a daily basis. Wear it as a belt holster on either right or left side, through the unique injection molded belt loops that also act as a cover for the reversible retention strap and thumb break. You can also wear it as an inside-the-pants holster with the spring steel removable clip that secures it to your waistband. Fits belts up to 1.75 in the vertical position and 1.50 in the horizontal position. Adjustable pouch mounted to the front of the holster lets you keep a spare magazine or illumination tool. Fits 3.75-4.5 barrel large autos.