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Since it is a base AR magwell and the upper houses all the other parts, could you swap uppers to a 5.56?
3 Answers
CMMG Inc. Dissent MK4 9mm 6.5" Tungsten
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Where a 5.56 upper would fit, how would it function? There's not enough room for the bcg to fully function during cycling. You'd have to use the proprietary CMMG upper made for the Dissent.