CHIAPPA RHINO REVOLVER 50DS (CO2) - 4.5BBThe Chiappa Charging Rhino 50DS CO2 BB Revolver in black and white highlights the same look and feel as the original . 357 Magnum firearm. With velocities up to 328 FPS and features and familiar operation that closely match the original, it's a great choice for owners of the real steel version or those looking for plinking fun. The CO2 cartridge can be replaced easily since the grip comes apart and has a tool attached to the inside for turning the