Hello, guys I am interested to know - there is the so called Threaded Barrel 9x19, 115mm, (4-1/2") for Steyr M A1 pistol. As we know it is aprox. 1/2" longer than a factory barrel. So, if we replace the factory barrel the shot from the Threaded Barrel must be more powerful. Thereby what is the affect on the pistol mechanism? Should we use more powerful recoil spring (like Recoil Reduction System for STEYR M-A1) or something else? Thank you.