Brn-4 Barrels 5.56X45MM
Cartridge: AKK_5.56 x 45
Contour: Medium
Finish: Black Nitride
Gas System Length: 416
Length: 10.4''
Make: Brownells
Make: Heckler & Koch
Make/Model: Brownells|Brn-4
Make/Model: Heckler & Koch|HK416
Make/Model: Heckler & Koch|Mr556
Model: Brn-4
Model: HK416
Model: Mr556
Muzzle Threads: 1/2-28
Twist: 1-7
Manufacturer: Brownells
Brownells BRN-4® HK® 416 compatible barrels, available in a variety of lengths and two contours.
Historically extremely hard to procure, HK® 416 compatible barrels are now available as part of the BRN-4® lineup. These barrels machined by Faxon, fit early generations of HK® 416 upper receivers and components. They are the perfect fit with the BRN-4 bolt carrier group and gas block (search “BRN-4” for all parts).
Available in common barrel lengths of 10.4, 14.5 and 16 inch, these barrels are suitable for any need. You can select the classic “heavy” profile, which is similar to the profile found on earlier HK® 416 models, ensuring barrel rigidity with minimal flex, or you can pick the new “medium” profile, which saves weight and makes the rifle quite handy. Barrels are button rifled from 4150 chrome moly steel with a 1-7 twist and have commonly used ½-28 muzzle threads for the attachment of the muzzle device of your choice. A deep black nitride finish provides an extremely hard exterior and interior, that is easy to clean.
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