Can not bear the piston always damaged so soon?
Then you must be try this!!
T-N.T. STUDIO - KWA MP7 Piston Kit
●100% CNC
●4 holes suction and exhaust design.
●Sand blasting & anodized.
●More better air seal!!
●Significantly longer service life!!
●Spare O-ring *1 for free !!
TNT CNC Piston assembly for KSC/KWA MP7
$14.00Price