A gun cleaning and safety device stored and transported inside the barrels of a gun, excluding live ammunition during transport. The device has a locking extendable ramrod (22,24), which accommodates a ramrod tip (26) designed to increase the surface area of a disposable cleaning element. The base of each unit has a cartridge-like end (10) which contains a pin (12), a spring (14), a container (16) for oil and/or solvent and serves as a handle for its ramrod. Cartridge-like end (10,12,14) allows the innocuous release of a gun's hammer when a live cartridge is not present in the chamber.