CMMG Multi Role Profile Barrel Sub-Assembly 4140CM .300 AAC Blackout 12.5 Inch 5/8-24 Threads Salt Bath Nitride Finish Available to order on-line. Ships in 5-14 days $190.91
CMMG MK4 MT 4140CM .300 AAC Blackout 16.1 Inch Barrel Medium Taper Profile 5/8-24 TPI Salt Bath Nitride Finish Available to order on-line. Ships in 5-14 days $177.28
CMMG MK4 MR 4140CM Barrel .300 AAC Blackout 16.1 Inch Multi Role Profile Barrel Salt Bath Nitride Finish Muzzle Thread 5/8-24 TPI Available to order on-line. Ships in 5-14 days $177.28
CMMG MC 4140CM .300 AAC Blackout 8 Inch Medium Tapered Profile Barrel 5/8-24 TPI Salt Bath Nitride Finish Available to order on-line. Ships in 5-14 days $172.42