The Brownells BRN-4 is a stripped replacement barrel chambered in 5.56x45mm NATO, designed for HK MR556-pattern rifles. Features a 10.4-inch medium-contour profile with a 1:7 twist rate for stabilizing heavier projectiles. Finished in durable black nitride for corrosion and wear resistance. Muzzle is threaded 1/2-28 for standard suppressor and muzzle device compatibility. Sold as a stripped barrel without additional components.
Brownells BRN-4 Stripped Rifle Barrel 10.4" Medium Contour 5.56 NATO 1:7 Twist Black Nitride
$299.99
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- 5.56 NATO
- Black Nitride
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Brownells
Brownells BRN-4 Stripped Rifle Barrel 10.4" Medium Contour 5.56 NATO 1:7 Twist Black Nitride
Specifications
- SKU:
- 080001440
- UPC:
- 050806500716
- Finish:
- Black Nitride
- Model:
- BRN-4
- Gas System Length:
- 416
- Cartridge:
- AKK_5.56 x 45
- Length:
- 10.4''
- Barrel Length:
- 10.4''
- Muzzle Threads:
- 1/2-28
- Twist:
- 1-7
- Make:
- Brownells
- Contour:
- Medium
- Make/Model:
- Heckler & Koch|MR556
- twist rate:
- 1:7
- muzzle thread:
- 1/2-28
- Caliber:
- 5.56 NATO
- fit:
- Heckler & Koch MR556
- condition:
- Stripped
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