The WarneA(R) Magazine Extension Kit replaces your magazine's existing baseplate to give your CZ 75 a capacity "boost." Made from anodized aluminum, the Extension Kit features an ergonomic shape that's comfortable in your hands and allows for easier mag swaps. PLEASE NOTE: Magazine not included. Fits your existing CZ 75 17-rd. factory magazine to provide an extra 2 rounds of capacity Includes Extension, performance spring and follower Made from anodized aluminum Ergonomic shape allows for better insertion/removal and comfortable shooting Designed and made in USA Order today!