The Brownells BRN-4 M27 Barrel is a 16.5" 5.56x45 chrome-lined barrel featuring a 1-7 twist rate, 1/2-28 muzzle threads, and a medium contour designed to replicate the HK416/M27 profile. It uses an HK-style 416 gas system and is finished in black, making it a direct-fit upgrade for BRN-4 and compatible AR-pattern rifles.
Specifications
ManufacturerBrownells
Product TypeBarrel
Caliber5.56 X 45
FinishBlack
Weight2.25 lb
Shipping & FFL
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