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Windham Weaponry 9in Pistol Barrels

Product Description

These 9” pistol barrels are machined from 4150 Chrome Moly Vanadium 11595E steel and include a Melonite QPQ finish inside and out. The Melonite finish offers protection against rust and corrosion as well as extending the life of the barrel.  The rifling is a right hand twist and the twist rate is caliber specific. 

Twist Rate:

  • The .223 barrel has a 1/9 twist;
  • .300 Blackout is 1/7;
  • 7.62x39 is 1/9.
  • .450 Bushmaster is 1/24. 

The barrels are shipped without a gas block - click here to see a low profile option we have available.  These premium barrels offer outstanding accuracy and reliability and will be a great addition to your AR pistol build.

NOTICE: THIS PART MUST BE USED IN - OR WITH - A PISTOL OR TITLE II RECEIVER (NFA REGISTERED)  FOR LEGALITY. This requirement is in accordance with Title 27 Code of Federal Firearms Regulations [Subpart B-Definitions (479.11) (a) thru (g) under Firearms]. For any further questions you may have concerning Local, State or Federal compliance, please contact the Alcohol, Tobacco, & Firearms Bureau. Local listings available at


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