A rebound locking mechanism (10) is taught that consists of a spring loaded shaft (28) having an activating flat (34) thereon, a spring loaded latch (78) interfacing with the shaft activating flat and a rebound plate (40) attached to the shaft. An inertia flywheel (56) having an offset protruding striker (58) is in alignment beneath said rebound plate, with an electric motor (60) rotating the flywheel. In operation when the motor rotates the flywheel in a counter clockwise direction, the striker hits a top surface of the rebound plate and bounces the flywheel clockwise until the striker hits beneath the rebound plate causing the shaft to rotate realigning the flat permitting the latch to rotate under spring urging and thereby repositioning the catch from a locked position into an unlocked position.