4UAD have posted a very thorough review of the Marui MWS and the GBB system behind it. Check it out below and like and subscribe if you like there work.
Although it was a late one, the Marui MWS M4 still shakes the market when it first came out. Some people said its very weak, and breaks when you charge 12 kg gas to it, and some people just absolutely loved it and call it the king of GBB. This GBB rifle is filled with quite some performance Myth and Tale and we figured today is gotta be the day we bust this performance Myth wide open!!! with Scientific test obviously~ Be ready for the first Grading System Challenge Ep.1 “Is the Tokyo Marui MWS M4 any good”?
4UAD