This is a used CMMG MK4 rifle chambered in 6mm ARC. It features a 16-inch barrel with a 1/7.5 twist, 30-round magazine, M-LOK handguard, flat top picatinny upper receiver, forward assist, and collapsible stock. Overall, this CMMG is in good condition with normal wear on the upper receiver. Bore condition is good with crisp rifling. This would be a good choice for target shooting. Buy online today!