9" 300 BLK AR BARREL

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This barrel assembly is all you need to convert your 5.56mm AR to 300 AAC BLACKOUT (7.62x35mm).

The 4150 steel barrel features a black nitride finish (including bore and chamber), 1:7" twist for super- or sub-sonic use. It comes ready for silencer use, threaded 5/8-24. Includes gas tube, steel low-profile press-fit set screw gas block (barrel has set-screw divots for gas block alignment). 

NFA-registered or Pistol lower required.

Requires barrel nut, gunsmith installation is recommended. 

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