TASER Extended Performance Power Magazine for X1/X26P Black. The extension that provides a place to store an extra cartridge is compatible with the X26P and X1. Specifications for TASER Extended Performance Power Magazine for X1/X26P: Manufacturer: TASER Color: Black Taser Model: X26P Battery Type: Lithium Metal CR123A Features of TASER Extended Performance Power Magazine for X1/X26P Extension provides storage for extra cartridge for X26P & X1 Approximately 500+ firings Package Contents: TASER Extended Performance Power Magazine for X1/X26P TASER 11010: Extended Performance Power Magazine for X1/X26P Black