Side-open gun case

A gun case having a waterproof outer shell and an oil impregnated inside fabric liner, and conjoined sidelong and end access openings that allow the gun case to be quickly turned inside out and hung for cleaning and/or drying. Secure fold-over VELCRO® closure flaps are provided for both openings to solidly retain the gun within the gun case and to prevent accidental opening and release of the gun. Padding is disposed between the patterned outer shell fabric and inner liner to cushion the gun as it is transported, and to maintain the buoyancy of the gun case so that it floats even with a gun contained therein.