Top Shop Dustin gets to try the real steel CMMG MK47 Dissent and for those who like the design, there is a licensed version, the EMG Helios CMMG MK47 AEG. The CMMG Mk47 DISSENT is a bufferless rifle chambered in 7.62x39mm with a 14.3" barrel permanently extended to 16.1" using a pinned and welded muzzle brake, making it compliant with federal length requirements. It features an adjustable side-folding stock, non-reciprocating charging handle, and M-LOK handguard for customization.