The T-N.T. Studio CNC Piston Kit was made for KWA MP7 GBB which is far more durable than the original version, as well as increasing the blowback and gas efficiency.
The T-N.T. Studio CNC Piston Kit was made for KWA MP7 GBB which is far more durable than the original version, as well as increasing the blowback and gas efficiency.