7.5", Gov't / Socom, 300 BLK, Pistol-Length, 4150 QPQ

7.5", Gov't / Socom, 300 BLK, Pistol-Length, 4150 QPQ

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300 BLK with pistol gas system for optimum reliability with super or subsonic ammo. 

Faxon Firearms barrels are the pinnacle of value. Manufactured 100% in-house from cradle-to-grave, these barrels are fully stress relieved, air-gauge tested, and 11 degree target crowned to ensure superior accuracy. 

Quality is imbued into our barrels from the start. We start with the best materials, either certified 4150 Mil-Spec steel or 416-R Stainless. From there, each barrel goes through a battery of tests at each operation until finished in Nitride and final inspected. All barrels are individually checked for headspace by precision custom hardened gauges. 

Faxon manufactures all our barrels in Cincinnati, Ohio under our ISO:9001 and AS:9100  quality certifications. 

  • Barrel Material: 4150 
  • Barrel Type: Button Rifled 
  • Barrel Caliber: 300BLK AAC
  • Barrel Twist: 1:8RH
  • Barrel Length: 7.5
  • Barrel Profile: Medium
  • Barrel Gas System: Pistol
  • Inside Finish: QPQ Nitride
  • Outside Finish: QPQ Nitride
  • Muzzle Thread: 5/8"-24 
  • Gas Block Diameter: .750"
  • Gas Block Journal Length: 1.9"
  • Gas Hole Diameter: 
  • Barrel Extension: M4
  • Weight: 1.02 lbs
  • Magnetic Particle Inspected!
  • 11-degree Target Crown

Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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  • great package unit

    Posted by Unknown on Feb 2nd 2017

    Great quality. I bought a barrel and bolt package to put on a suppressed 300 BLK. Unit works great. Fit and finish were excelent. I'll buy more in the future.

  • Another great and affordable barrel from FAXON

    Posted by Nate D. on Dec 4th 2016

    This went on a folder AR pistol build with matching Faxon bolt/BCG. It shoots sub 4 MOA at 100 yards, so far and maybe better with a magnified optic.

  • Nice 7.5" blackout barrel

    Posted by sharpshooter33(AR15.com) on Oct 4th 2016

    The fit in my upper was nice and snug but not too tight. Fit perfect! finish was very nice. It shoots great for what I've done so far. Haven't really pushed it to see how accurate it is. the Nitride inside finish is great for cleaning. The barrel is very clean to shoot. Running it with a Nitride BCG and it is smooth.
    I would have given it a 5 star except 2 of my own small complaints not actually the barrel.
    1. no gas port size listed on the webpage it's blank
    2. I wish it was 1:7 twist with the size of the barrel it needs all the stabilization it can get with hefty hefty bullets
    But I have had zero problems with this barrel and I would buy it again for the price!
    Thanks FAXON

  • 7.5" 300 BO BARREL

    Posted by Unknown on Sep 8th 2016

    Thanks for the fast shipping on of another quality barrel.

  • 300 Blk Out

    Posted by Titan Accessories Co, LLC St Petersburg Florida on Jun 17th 2016

    Nice product. Fit and Finish are excellent. Gas Port is sized properly and experienced no short stroking at all running 17 Gr of H110 with 147 Gr General Dynamics at 2.140 COL. Plan on using again. Also ran well with 16Gr of 110 at 2.035.

  • Great Barrel

    Posted by Brandon on Mar 29th 2016

    I own three Faxon barrels and I'm going to keep buying them. They perform great and are at a great price point.

  • good looking barrel

    Posted by Unknown on Sep 24th 2015

    Barrel looks good price is great couldn't ask for more

  • Excellent barrel

    Posted by Josh on Aug 14th 2015

    Very nice barrel, machining, fit, and finish are all flawless.

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