This is a high volume magazines were designed for professional and competition shooters that depend on a perfect shot every time. Expertly machined for exceptional quality and assembled to perform with every shot. SGM Tactical is a name you can trust! When you need a cost effective aftermarket replacement mag that you know you can count on you need a SGM! This magazine is made from high strength durable polymer. - Specifications and Features: - SGM Tactical SGMT9G33R - GLOCK 17 19 26 and 34 - 9mm Luger 9x19mm - 33 Rounds - Polymer - Black