The 6mm ARC was designed to deliver excellent ballistic performance in AR15 platform rifles that rivals the extended range performance of larger rounds typically chambered in the larger AR10/LR308 style rifles. Features EML handguard, full length M-LOK slots on both sides and the bottom of the handguard as well as M-LOK between the top picatinny rail sections; ZEROED parts including: drop-in single stage trigger, pistol grip, 60/90 degree ambi safety, ambi mag catch, extended mag release button, ambi charging handle, bolt catch, polymer dust cover and muzzle brake. Includes CMMG 10rd magazine.