New RA-Tech NPAS Flute Valve
OptimusPrime
09 Nov 2013
Two things from RA-Tech. First, they now have an updated website which looks way better than before. Second, they just released a new version of NPAS Flute valve which is adapted for the RA Aluminium NPAS Nozzle. This is made to for the WE M4, KSC/KWA M4 Gas Blowback Rifles which they claim will give a stable and better performance.