RA-Tech KJW M4 Bolt & Custom M40 Video
OptimusPrime
03 Oct 2011
New video submitted by RA-Tech as they feature their M4 bolt for the KJ Works M4 Gas Blowback rifle which looks even more realistic than the original. The next part of the video is a custom M40 rifle which comes with woodkit and upgraded internals. Also in this video is their CNC'd steel firing pin and hammer for the WE AK74 gas blowback rifle.