Glock Gen 4 Glock 27 .40 S&W 9-Round Factory Magazine

This is a factory 9-round magazine with for Gen 4 Glock 27 pistols in .40 S&W.40 S&W Glock compact & subcompact pistols deliver duty-proven performance in an easy-to-conceal package. Combine the hard-hitting firepower of .40 S&W with the ultimate reliability of Glock's standard factory polymer-and-steel magazines ... These subcompact, 9-round magazines are designed for use exclusively with Glock 27 pistols chambered in .40 S&W. Features include steel wire spring internals and numbered witness ho