Why settle for standard capacity? More is better, and the 25-rd. ProMagA(R) Glock 17/19/26 Extended Mag gives you exactly that. The extra capacity makes range time a little more enjoyable and a little easier on your thumbs. Fits Glock 17, 19 and 26 pistols Body is constructed of a proprietary ZytelA(R)-based polymer Full-length steel insert is stamped and welded just like the factory magazine Injection-molded magazine follower Spring is made from heat treated chrome silicon wire Made in USA Order today!