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Ballistic Advantage 9" Barrel (300 Blackout)

Ballistic Advantage 9" 300 Blackout Modern Series Barrel

MSRP $160.00
SALE PRICE: $149.95
Savings: $10.05

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Stock Status :IN STOCK

Product Code: BABL300004M

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Ballistic Advantage 9" Barrel (300 Blackout) Modern Series

Ballistic Advantage creates every barrel as if it was their responsibility to honor the blank's full potential. They have long produced some of the best finished barrels available in the industry. For years they've provided barrels for several top tier AR15 manufacturers in the market and have only recently began to offer their products to the end user at an economical price. You no longer have to wait 6+ months to own a precision made and combat proven barrel. Buy with confidence and build your dream AR15 today!

Quench Polish Quench (QPQ) is a specialized type of nitrocarburizing case hardening that increases corrosion resistance. It is sometimes known by the brand name of Tufftride, Tenifer or Melonite. QPQ is a huge improvement over Chrome Lined barrels. Unlike chrome lining, where the chrome is built up on the surface, QPQ converts the surface without the risk of dimensional build up. The technique is used when two or more of the following properties are required in a work piece:

  • wear resistance
  • corrosion resistance
  • lubricity
  • fatigue strength


  • Length - 9"
  • Material - 4150 CrMoV (Chrome Moly Vanadium per MIL-B-11595E)
  • Finish - QPQ Corrosion Resistant
  • Gas System Length - Pistol
  • Gas Block Journal - .750" Gas Block Journal
  • Twist Rate - 1/7 Twist
  • Muzzle - 5/8x24 Threaded Muzzle
  • Weight - 21oz
  • Other Info - QPQ coated M4 Feed Ramp Extension

All NFA/ATF Rules Apply

Depending on your state and local laws, you could use this barrel with a lower receiver that is a Registered SBR, or Pistol. Possession of this barrel along with a Non-NFA lower receiver may be Prohibited. We are not lawyers and the above information is not legal advise. Make sure you understand the most up to date federal, state and local laws before proceeding with this product.

Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 10 Write a review »

  0 of 0 people found the following review helpful:
5 of 5 RE: Wrong barrel May 3, 2020
Reviewer: Dan from Virginia  
Customer service was very quick to respond. Will shop here again.

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  0 of 0 people found the following review helpful:
5 of 5 Great great barrel December 19, 2018
Reviewer: Brandon McCourtney from North Mankato, MN United States  
I finally got this build done and with cheap American Eagle ammo I shot 2 inch groups at 100 yards.  I’m assuming once I start experimenting with new hand loads I’ll be able to easily cut down to 1-1.5 inch which is plenty accurate out of a 9 inch barrel!  Cant say enough about BA.  Good customer service too and very fast shipping from RTB

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  1 of 1 people found the following review helpful:
5 of 5 Great deal August 23, 2017
Reviewer: CP from Clearwater, KS United States  
I needed to upgrade from 7.5" barrel with a 1/10 twist to a 9" with a 1/7 twist and this barrel worked great. Right to Bear had the best price going.  The barrel quality and finish looks very good.

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  1 of 1 people found the following review helpful:
4 of 5 solid barrel April 29, 2017
Reviewer: Mario Gomez from Miami, FL United States  
BA makes good stuff. fit and finish are good, and the rifling is strong.

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  1 of 2 people found the following review helpful:
4 of 5 Awesome product. April 17, 2017
Reviewer: William McClellan from Fort Polk, LA United States  
Great product, arrived as described.  Mediocre shipping time however, not as fast as I expected from site description reguarfing items in stock.

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DEPARTMENTS > Brands > Ballistic Advantage
AR15 Parts > Barrels
AR15 Parts > Barrels > 300 BLACKOUT BARRELS
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AR15 Parts > Barrels > 300 BLACKOUT BARRELS > PISTOL / SBR BARRELS - .300 BLK
Pistol Braces / Parts