Designed as a replacement or spare magazine the For Glock G22 23 24 27 35 Gen1-4 40 S&W Magazine - 19 Round Polymer provides 19-round capacity for 40 S&W. It features Polymer construction. It is intended for Glock G22 23 24 27 35 Gen1-4 compatibility.It is a straightforward choice for replacing a worn magazine or keeping an additional magazine available for range training or field use.Caliber: 40 S&WCapacity: 19 roundsMaterial: PolymerFit: Glock G22 23 24 27 35 Gen1-4