CMMG 55AC72C Rifle Mk4 T SBN Semi-Auto .223 / 5.56 16.1" MB M4 Black

CMMG Inc. MK4 T
• Forged 7075-T6 aluminum flat-top M4 upper & AR15 lower receivers   • Mil-Spec single-stage trigger   • 416 stainless steel medium taper threaded (1/2"-28TPI) barrel w/A2 compensator   • 1:7" twist   • 11.13" long lightweight RKM11 free-float handguard is made of 6061-T6 extruded aluminum & features 1913 Picatinny rail top QD sling points & KeyMod universal attachment system located at the 3 6 & 9 o’clock positions   • Mil-Spec M4 stock w/6-position receiver extension   • A2 pistol grip   • Black finish   • Includes (1) mag. & CMMG Lifetime Quality Guarantee   • OAL: 32" (collapsed)   • Wt.: apx. 6.5 lbs.  
Cal.: 5.56 NATO   -   Cap.: 30   -   Brl.: 16.1"

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 4140CM SBN - 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