Rapid fire weapon with bidirectional interchangable barrel

A bi-directional barrel interchange system for a rapid fire weapon adapted for quickly and easily removing or attaching a barrel with a receiver assembly from either the front or alternatively from the back end of the receiver housing comprising;

• a receiver assembly comprising a receiver housing having at least one side plate, a top plate, a bottom plate, and a back plate;
• said receiver housing having at least one tapered relief on at least one of the side plate, the top plate, or the bottom plate;
• the receiver assembly further comprising a barrel extension;
• said barrel extension comprising threads suited for receiving the barrel assembly;
• a barrel assembly comprising an attaching region comprising a first portion having threads and a second portion having at least one locking detent;
• a lock assembly comprising a spline, said spline being substantially mated keyway with at least one of said locking detents;
• said spline also being in communication with a spring mechanism said spring mechanism being in attachment with said barrel extension;
• removal of said barrel assembly from said receiver assembly comprising;
• moving the spline to a predetermined position in alignment with the tapered relief;
• unscrewing the barrel assembly from the barrel extension and removing from the front of the receiver housing;
• or in the alternative;
• removing the back plate from the receiver housing;
• removing the receiver assembly, having the barrel assembly attached, through the back of the receiver housing.