16" Gov't / Socom, 300 BLK, Carbine-Length, 4150 QPQ

16" Gov't / Socom, 300 BLK, Carbine-Length, 4150 QPQ

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300 BLK goodness at carbine length, just like the designers intended. 

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: 16"
  • Barrel Profile: Socom/Gov't
  • Barrel Gas System: Carbine
  • Inside Finish: QPQ Nitride
  • Outside Finish: QPQ Nitride
  • Muzzle Thread: 5/8"-24 
  • Gas Block Diameter: .750"
  • Gas Port Diameter: .107"
  • Gas Block Journal Length: 1.9"
  • Barrel Extension: M4
  • Weight: 1.60 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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  • 16inch-300BLK

    Posted by Lester Titsworth on 14th Mar 2017

    WILL PURCHASE OTHER FAXON BARRELS FOR MY NEXT BUILDS. I have not finished assembly of rifle just yet.Expecting good Accuracy from this barrel.CANT GET A BETTER BARREL FOR THE $$$$$

  • Great accuracy.

    Posted by Unknown on 20th Feb 2017

    Put the new barrel on and had a box of ammo that was the only one at the store. Sighted in and then shot 1.5" group at a 100 yards. Really happy with those results. Going to start building a load now and expect that group to get much smaller. This is my second Faxon barrel and I am extremely happy with both of them.

  • Great Barrel

    Posted by Cory on 15th Feb 2017

    Purchased this .300Blk Barrel for my first Blackout build, Have put about 500 rds through it. It just keeps getting better and better!! Super accurate and light weight. Will purchased more Faxon barrels for future builds.

  • Awesome!!

    Posted by Unknown on 14th Dec 2016

    Cant get a better barrel for the $$. Very accurate, and tuff.

  • Great barrell

    Posted by cory on 9th Dec 2016

    I bought this barrel for my first blackout build, arrived quickly and packed well. The finish and craftsmanship of this barrel is great. Super lightweight, very accurate barrel.
    Will purchase other Faxon barrels for my next builds

  • have not finished the build , But the barrel looks amazing!!

    Posted by David Hawkins on 26th May 2016

    Barrel looks amazing,fast shipping


    Posted by Jimmy US Army Veteran on 7th May 2016

    I purchased this barrel to complete my 1st ground up AR build. I also purchased the Gas Block. It was packaged very well and delivery was very fast. I ordered on a Thursday and received it on Saturday. The barrel fit well in an Anderson Arms upper receiver. I took it to the range today 5.6.16 and it produced very well. I was able to obtain a 6 round 1 inch group at 100yards with Remington 120gr (OTFB) rounds.

    Needless to say I am very impressed and would have no issues buying another. The finish was amazing as well especially for the price!!! GREAT JOB GUYS!!!!!

  • very nice barrel

    Posted by armando on 18th Apr 2016

    This is a very nice barrel, I will be buying another.

  • Great barrel for the price.

    Posted by Jose on 24th Jan 2016

    This was the barrel I went with for my first 300BLK build after reading multiple online reviews. I paired the barrel up with a 15" BCM KMR rail. I have got to say that this combo is a home run. Match up great together and is a very light weight set up. The berrel fit perfectly and shoots even better. From first shot to last this berrel ate every type of ammo I fed it. I will be building a 300BLK SBR next and will be running another Faxon berrel. Only complaint was it had a lot of markings (scratches and blemishes) around the area where the barrel enters the upper receiver. No big deal as it will never be seen and I run my rifles hard as they are tools, not trophys. Great barrel keep up the good work.

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