So this may seem like an odd question and i reckon the answer is mostly preference but: Why do some of you have so much rail space when all you have mounted is a fore-grip and a light ? The m4 is a light weight , battle rifle. Why would you weigh it down with an unnecessarily long rail? The only reasons practically i could see would be A) you have really long arms and its more comfortable B) your gas system requires you have a longer rail to cover the gas block, though i suspect thats more for looks than anything. I do understand some people think they just look cooler and i also get that if you have a DMR styled rifle you need the extra rail length for proper bipod position. What i dont get is why you would put an 11" rail on a 14.5 carbine? Not trying to knock anyone im just curious. I want the lightest most maneuverable gun possible and i have carbine length gas systems so i only buy 7" rails ,because thats all i ever need.


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