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CMMG Mk4 T 5.56mm Upper Complete 55BC76A

Product Code : 815835015866


Mfg Item #: 55BC76A

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When modularity, affordability, and quality are all important the Mk4 T is the upper of choice. The Mk4 T introduces CMMG's RKM series of KeyMod free-float hand guards and a nitrided 4140 CrMo steel barrel in a medium taper profile.

TypeComplete Gas Impingement
Series5.56mm Upper Complete
SightsNone, Optic Ready
Caliber223 Remington/5.56 NATO
Barrel Length16"
Barrel Material4140 Steel
Handguard FinishBlack
Barrel DescriptionThreaded
Barrel Length Range16.00" to 17.99"
Receiver Description7075-T6 Aluminum M4

Determined at checkout.