14.5", M4 Profile, 5.56 NATO, Carbine Gas, 4150 QPQ

14.5", M4 Profile, 5.56 NATO, Carbine Gas, 4150 QPQ

(5 reviews) Write a Review
$165.00 $115.50
(You save $49.50)
Usually ships within 2 business days.
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Medium profile for maximum heat resistance during spirited firing. 4150 QPQ coated inside and out for amazing corrosion resistance and durability. 

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 CMV Steel 
  • Barrel Type: Button Rifled 
  • Barrel Caliber: 5.56 NATO
  • Barrel Twist: 1:8
  • Barrel Length: 14.5"
  • Barrel Profile: M4
  • Barrel Gas System: Carbine Length
  • Inside Finish: QPQ Nitride
  • Outside Finish: QPQ Nitride
  • Muzzle Thread: 1/2-28 TPI (Threads Per Inch)
  • Gas Block Diameter: .750"
  • Gas Port Diameter: .068"
  • Gas Block Journal Length: 1.9"
  • Barrel Extension: M4
  • Weight: 1.54 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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  • 14.5 M4 profile, 5.56 NATO, Carbine Gas, 4150 QPQ

    Posted by Derek White on May 30th 2017

    If you're looking for a top-notch, excellent, barrel, look no further. Go ahead and buy this. Barrel came absolutely perfect. Inside and out. Shoots sub MOA. I'll never buy another barrel from another company again.

  • Excellent

    Posted by Brian J on Mar 16th 2017

    Excellent barrel, although a bit pricey. QPQ finish is outstanding, and very snug to the gas block (although I had to debur the gas port a bit).

    1" shot groups at 100 yards, even after barrel heats up.

    I have used ESS in the past, but as they have scaled back production on what I need, I will use Faxon instead.

    Would easily purchase again.

  • barrel

    Posted by mike c, maine on Nov 28th 2016

    Very nicely milled barrel. The m4 profile is sharp looking and the qpq finshe is beautifully done. I cant beleive how inexpensive this barrel is for what you get. It's high end without the price. The barrel went into my upper without issue. Had a chance to rattle off a few round on my new build and everything function properly. Did not have a chance to site it in and see what it can do for accuracy though. Would recomend to a friend. Don't hesitate to by this barrel you won't be disappointed.

  • Amazing barrel.

    Posted by David Torres on Mar 7th 2016

    This is my first Faxon barrel and I was very impressed with not only the look and quality but how well it's performed. My rounds are hitting the targets every time. I appreciate how Faxon gives a military discount. To all my fellow service members out there make sure you take advantage of that. I would definitely recommend this Brand/product to anyone looking to build/replace a weapon system.

  • Great looking product.

    Posted by Doug on Dec 19th 2015

    This is my first try with Faxon Firearms and am well pleased with it so far. I only have about 200 rounds through it so far but am loading up another 400 for it now. So for the accuracy at 100 yards is as good as I can shoot without a scope, including the break in... The fit and finish is just as it looked in the pictures and it went right in. I would likely buy another !

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