Happy's Airsoft got this tip for owners of the Tokyo Marui MWS Gas Blowback on how to easily increase its power. Please make sure that any power increase will still make the airsoft gun compliant with local regulations and that you do this mod at your own risk... "This video showcases how to completely take apart your bolt carrier on a Tokyo Marui MTR 16 and other Marui GBB M4s. I also show how to modify a part in the nozzle to increase your muzzle velocity/energy.