Product Description: GH 701, 4 inch .177 Co2 Revolver (Black Grip/ Silver) Revolver that shoots in both Double and Single Action Metal Construction (Polish Silver Finish) With 6 round cartridges 20mm Rail on Top Realistic Bullet Type housing chamber stores 6 rounds of .177 BB Polymer Grip - CO2 Compartment in the Grip (CO2 Cartridge not include)