A gun safe affixed to a surface such as a motorcycle for securely storing a gun. The gun safe includes a main body having an opening leading to an interior storage area. A planar surface area extends out from the main body. A cover covers the opening of the main body and the planar surface area. The cover may be hinged to the main body. The main body is preferably affixed to the surface by a plurality of bolts running through openings in the planar surface area and inserted into the motorcycle surface. A locking mechanism is utilized for locking the cover to the main body and the planar surface area. A gun is then stored in the gun safe and the locking mechanism locks the cover in a closed configuration to prevent unauthorized removal of the gun.