45 ACP Posted January 21, 2010 Share Posted January 21, 2010 How can I determine the proper length to maximize the extension tube on my M2 18.5" barrel length. Thanks 45 ACP, Quote Link to comment Share on other sites More sharing options...
tasum Posted January 22, 2010 Share Posted January 22, 2010 (edited) you can check on midway for the length of the nordic tubes. http://www.midwayusa.com/viewproduct/?productnumber=114718 guess it depends on how many extra rounds you want. guys who use their m2's for practical shotgun don't mind the tube being longer than the barrel. if it's for home defence then someone from the US would be better placed to comment. I know you can get door breacher flash hiders for some shotties, not sure if the m2 has an aftermarket one. hope this helps. Edited January 23, 2010 by tasum Quote Link to comment Share on other sites More sharing options...
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