Patent attributes
A blast and projectile resistant gun port is provided with both a roller-slide mechanism and a lever-actuated, spring-loaded, cam mechanism which a shooter operates to open or close a gun-port door over a gun-port opening in a gun-port frame, as well as to translate the gun-port door out of the way of the gun-port opening. The shooter is able to effect these actions by nudging the lever on the cam mechanism with or without placing one or more hands on the lever and is thus able to keep both hands on weaponry. The gun-port door keys into its closed position, and an elastic weather seal is squeezed firmly between the gun-port door and the gun port frame when the gun-port door is closed. The squeezing of the weather seal is effected by springs in the cam mechanism. The gun-port door and the components and subassemblies are easily and rapidly replaceable.