CMMG MK4 MT 4140CM Barrel 5.56x45mm NATO 16.1 Inch Medium Taper Profile Threaded Barrel 1/2-28 Thread Salt Bath Nitride Finish Available to order on-line. Ships in 5-14 days $179.49
CMMG MK4T SBN Upper, Fits AR, 223 Rem/556NATO, 16" Barrel, A2 Brake, Flat Top, CMMG RKM11 KeyMod Handguard, Black 55BC76A Out of stock. Check back later... $659.00