The WarneA(R) Magazine Extension Kit replaces your magazine's existing baseplate to give your G43X or G48 a major 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 GlockA(R) 43X & 48 original factory magazines Provides +2 capacity Made from anodized aluminum Ergonomic shape allows for better insertion/removal and comfortable shooting Meets USPSA 141.25mm legal length Designed and made in USA Order today!