The Venom mag carrier is the most versatile, functional, and comfortable mag carrier on the market. The ambidextrous design not only allows you to wear it on your left or right side, but can also be worn inside or outside the waist. The wide 1.5" or 1.75" belt clip is rock solid and allows easy on/off without the need to undo your belt. The four retention screws give you the ability to fine tune the retention to exactly what you like. The greatest feature of the Venom is it's ability to fit magazines from a variety of manufacturers in the same carrier. For example, one Venom mag carrier will fit all your 9mm/.40 double stack magazines from Glock, Smith and Wesson, Ruger, HK, FN and so on.