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Ballistic Advantage 8" .300 Blackout Pistol Length Barrel, Modern Series

Ballistic Advantage 8" 300 Blackout Modern Series Barrel

MSRP $155.00
Savings: $35.01
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Stock Status :IN STOCK

Product Code: BABL300001M


Ballistic Advantage 8" Barrel (300 Blackout)

This .300 Blackout chambered 8 inch Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension.

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 - 8"
  • Material - 4150 Chrome Moly Vanadium
  • Profile - DRP
  • Finish - QPQ Corrosion Resistant
  • Gas System Length - Pistol
  • Gas Block Journal - .750"
  • Twist Rate - 1:7 inches
  • Muzzle - 5/8x24 Threaded
  • Weight - 19oz

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: 4.5 of 5 4.5 of 5 Total Reviews: 12 Write a review »

  1 of 1 people found the following review helpful:
5 of 5 BA "ecomony" barrel is better than most April 11, 2021
Reviewer: LS Shaun from WA  
I bought this BA barrel to replace a 9" "suppressor optimized" 1 in 7" twist Faxon barrel I had.  The Faxon barrel was showing signs of bullet wobble about every 3rd round fired, on average.  Not good enough.  Ammo was Magtec 200 grain subsonic.  I tried out this Ballistic Advantage barrel today.  Same 200 grain  Magtech subsonic ammo.  Every single bullet hole on paper was perfectly round from 1 yard out to 50 yards.  No signs of wobble from the very first shot to the last.  I had zero issues with cycling.  Locked back on last round every single time with no suppressor.  I do use a lightened RTB arms bcg and VLTOR A5 H1 buffer system.  I cannot express in words how happy I am with this product.  I trust this barrel and will be installing my suppressor on it when I get it out of jail.  Oh, and accuracy is great.

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  1 of 1 people found the following review helpful:
5 of 5 Unbelievable Performance March 24, 2020
Reviewer: Jason Hall from Panama City Beach Florida  
Every order I have received from RTB.COM has been filled with complete 100% accuracy.  All products are of the highest quality and I couldn't be happier.  I haven't completed my AR pistol yet but hope to complete it soon.  The shipping is absolutely the fastest I've seen yet, and I'm saying faster then some of the "BIG BOX GUN STORES"  These guys are dedicated and Highly motivated. Thank you all.  SEMPER FI!!

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  3 of 3 people found the following review helpful:
5 of 5 Great barrel at a great price June 22, 2017
Reviewer: Michael Scott Rhue from Louisburg, NC United States  
I ordered this barrel for beater 300 blackout upper just for suppressed shooting, to my shock it showed up and was even a 5r rifled barrel, shoots great, gas port size is good, perfect ejection with sub sonic and supersonic loads.

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  1 of 1 people found the following review helpful:
5 of 5 BA barrel. January 25, 2017
Reviewer: Dub from Bend, OR United States  
Fantastic pricing and lightning fast shipping!!!!

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  1 of 1 people found the following review helpful:
5 of 5 Haven't put togeather September 16, 2016
Reviewer: Anonymous Person from Oklahoma city, OK United States  
I ordered on a  Thursday  got it on Monday for great price about 30 bucks cheeper than there competitors.
As far I know this great barrel but I was impressed with right to bear.

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