alfred10 Posted February 15, 2010 Posted February 15, 2010 What length barrel does the US military use? Does anyone use the 14'' barreled M4? What is shortened on this model? Is it less reliable than a full size? How hard would it be to mount a Knox folding stock? Quote
cody6.0 Posted February 16, 2010 Posted February 16, 2010 US military uses the 18" on standard M4's butI'm sure they and other militaries also use the 14" in some situations. The 18" and 14" will both cycle decent ammunition the same. And you cannot use a folding stock on any Benelli semi-autos. Quote
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