FCW x Umarex R8 Revolver Cylinder Part + 8 CNC BB Cartridge with Moon Clip Set
 
Manufacturer: FCW
Cylinder upgrade part made by Aluminium 
This upgrade part can let you work with moon clip
8 CNC BB Cartrige with Moon Clip Set
Fit To All Umarex R8 CO2 Revolvers (USA, EU & Asia Version)