n2hhr Posted August 13, 2014 Report Share Posted August 13, 2014 I am going to replace the factory hand guard on this rifle but don't know where you measure from to purchase the right length. The end of the barrel at the back of the barrel nut? At the front of the barrel nut? I am going to remove and replace the front sight/gas block with a low gas block and put on a rifle length rail system. I have been shopping online for the best lightest one that I can find. Would any of you fine shooters have a suggestion? I want for mounting rails and it to be free floating but light. The gas block will be inside of it. DPMS says that I have to purchase the A3 version so that it matches with the receiver rail, but non of the other companies talk about this one way or another. Thanks! Quote Link to comment Share on other sites More sharing options...
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