COLT M45 CQBP BLACK, This M45 CQPB is manufactured by UMAREX and is fully licensed by Colt. This pistol has outstanding build quality with its full metal construction. This steel BB pistol feels and looks authentic. This pistol uses 12g co2 cartridges which are stored inside the grip of the pistol. The M45 features a strong blowback system and has an under rail system for attaching accessories.