This 10-round magazine from ProMag is compatible with Glock G19 Glock 17 and Glock G26 pistols.The magazine body is constructed of a proprietary DuPont Zytel-based polymer with a full-length steel internal insert stamped and welded just like the factory magazine.In addition it has a spring made from heat-treated chrome silicon wire and an injection-molded magazine follower for consistent and reliable feeding.ProMag Glock G17/G19/G26 9mm Magazine10 Round CapacityCompatible with the following models:G17G19G26Order your ProMag Glock magazine online today!Shopping for ammunition? Score big savings and fast shipping when you shop our large selection of cheap bulk ammo for sale.Score big savings and fast shipping on all our best-selling ProMag rifle and pistol Magazines available online at Ammunition Depot.