The next thing your going to see is all Hand guards made in Poly, getting away from aluminum to save weight. Soon the only parts that will be metal will be the barrel and firing group. The problem is that the Key Mode doesn't allow things to be tightened down enough without stripping or pulling through. A large square weldnut needs to be installed to be able to crank down things. M-rails are rough of the hands, so this leads to the solution : Ergonomic key Mod rail with M-lok rails strategically built in.
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