CMMG 55A59C5 MK4 T 5.56 16

When modularity affordability and quality are all important the Mk4 T is the rifle of choice. The Mk4 T introduces CMMG's RKM series of KeyMod free float hand guards. Either a 416 stainless or nitrided 4140 CrMo steel barrel in a medium taper profile are offered for both 5.56mm and 300 Blk. The 22LR and 9mm models feature a nitrided 4140 CrMo M4 profile barrel. - Caliber: 5.56mm - Barrel: 16.1 1:7 twist medium taper 416SS bead blasted - Muzzle: A2 comp. threaded 1/2-28 - Hand Guard: CMMG RKM11 KeyMod hand guard - Furniture: A2 pistol grip M4 butt stock with 6-pos mil-spec receiver extension - Receiver: Forged 7075-T6 AL M4 type upper AR15 type lower - Trigger: Single stage mil-spec style trigger - Weight: 6.3 lbs (unloaded) - Length: 32 (stock collapsed) - Gas Port Location: Mid-length