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This HK416™ M4 style barrel fits any HK416™ or MR556 rifle.

Inspired by the military issue HK416® carbines and their corresponding barrel, this M4 profile barrel fits HK416™ upper receivers and MR556® rifles.  The barrels start with an authentic, original HK416™ barrel extension.  Two inserts are included, which will work with any style of HK416™ upper receiver.  Some HK416™ and MR556® uppers require a different sized index tab or pin, these barrels accommodate all!  Barrels are produced in the US and feature a matte black Isonite finish.  Barrel twist is 1-7, and are chambered 5.56x45mm NATO.  Muzzle is ½-28.  Barrels are laser marked in the German style. 

Upgrade your MR556® to military styling or build your custom HK416™ clone today with these new production barrels.

BROWNELLS - HK416™ STYLE BARREL 5.56x45MM 16IN ISONITE

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Cartridge: 5.56 mm NATO

Length: 16"

Contour: M4

Finish: Black

Gas System Length: Carbine

Twist: 1-7