Quick view CMMG Cmmg Dissent, Cmmg 60aa90c-mb Dissent Mk4 6mmarc 16.1 Mdbrz $1,967.87 Looking to pack the long-range performance of.243 or.308win without the weight of a larger ar-10/lr-308 rifle? it might be time to take a look at 6mm arc.With flat shooting characteristics and compatibility with ar15 (or mk4 dissent) platforms, this 6mm... Compare Add to Cart