Smith & Wesson M&P40 Springer Piston

The piston on this airsoft pistol has been a major problem for many people. It simply does not have the strength required to withhold the force put upon it. Because of this, I have designed a piston that airsoft hobbyists can use to repair the gun when it breaks, rather than throwing it away or buying a new one. My design uses a triangle support on the little square nub that the force is applied upon, and that seems to have solved the problem. I have shot about 200 plastic bb's through the gun w