Jonathan Higgs of Airsoftology reviews the Airsoft GI G4 M-LOK Rail that is claimed to be lighter than other aftermarket rail systems in the market without compromising its durability... "We're taking at look at the new M-LOK rail from Airsoft GI's G4 lineup to see if this lightweight 13-in M4 rail is primed to dethrone Keymod as the new modular standard."