Medic650 Posted December 11, 2013 Share Posted December 11, 2013 I looked at a parts schematic for a Supernova under the description of the stock tube it was called a recoil spring tube. Does anyone know if a recoil spring for a M4 could be put into a 166s adjustable stock tube. My thinking is if the spring would fit into that tube, the adjustable stock for a SuperNova Tactical could be put on a M4 for a 5 positon stock instead of a 3 with the original set up. I may have to do some dis-assembly and give it a try. I did try putting the pistol grip from the supernova collapsible stock on my M4 and it will screw on so the 166s tube would thread into a M4. Quote Link to comment Share on other sites More sharing options...
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