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AR-15 6MM ARC BARRELS HEAVY PROFILE Reviews & Ratings

To fully take advantage of the performance of the 6mm ARC cartridge Brownells has teamed up with Faxon to offer these AR-15 6mm ARC barrels.

Made from 416R stainless steel and finished with a black Nitride finish, these come in a heavy profile with a 1-8 5R twist rate, and 5/8-24 muzzle threads.

Available in four different lengths here are the associated specifications:

14.5” length with Carbine length gas system and 0.069” gas port diameter
16” length with Mid-Length gas system and 0.079” gas port diameter
18” length with Mid-Length gas system and 0.079” gas port diameter
20” length with Rifle length gas system and 0.085” gas port diameter

Regardless of what barrel length you choose each barrel follows the same following specs:

1-8 5R twist
.750” gas block diameter
Heavy profile
5/8-24 muzzle threads
416R stainless steel
Black Nitride finish

See all of our AR15s and AR15 parts here.

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3 Stars

Reviews Summary

Customers are largely impressed with the Faxon AR-15 6MM ARC barrel, praising its accuracy and quality. Most reports of MOA performance highlight its potential for exceptional shooting results. However, several users noted installation challenges, particularly with the gas block and feed ramp quality, suggesting improvements are needed. Overall, it’s seen as a solid choice at a great price.

What Reviewers Are Saying

Product Quality

70%

Reviewers frequently emphasize the high quality of the barrel, noting that it performs well and meets or exceeds expectations in terms of fit and finish. Many have reported exceptional accuracy, with several achieving sub-MOA results, which adds to the positive sentiment around its overall build quality.

Accuracy

65%

The barrel receives consistent praise for its accuracy, with many users achieving impressive groupings at varying distances. Many reviewers state they are getting sub-MOA performance with recommended loads, which enhances its appeal for precision shooting enthusiasts.

Gas Block and Installation Issues

55%

Several reviews mention difficulties related to the gas block installation and the need for an adjustable gas block. Some users found the gas port size problematic, indicating a need for adjustment to achieve optimal performance. This aspect was a common hurdle noted by many reviewers.

Feed Ramp Quality

45%

Critiques on feed ramp quality surfaced prominently, with multiple users reporting burrs and sharp edges causing feeding issues. While some managed to rectify the problem, this feedback points to a significant area for improvement in manufacturing consistency.

Value for Money

60%

Many customers feel the barrel provides excellent value for money, particularly given its performance and competitive pricing. The combination of quality and affordability has encouraged numerous recommendations and repeat purchases.

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20 inch with 75 gr v max.

Really happy with barrel. Bought 2 boxes of hornady black 105s that shot a little over moa. Loaded up some 75 gr v max with Varget and shooting half inch groups at 110 yards. No complaints. I bought the barrel to be a night gun and was hoping it would shoot the lighter stuff good. I would buy another.

by Layne Hahn on March 10, 2024

Verified Purchase

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Best AR Barrel I've Ever Owned

I love this barrel. I finally took it to the range yesterday and right away, without any break in it was shooting sub MOA effortlessly. I like how the Brownells variant of faxon barrels don't have the heavy fluting common to faxon barrels, so with the discounted price this purchase was win win. Oh, I found that Hornady 108 grain R ELD Match shot best so far.

by John on December 08, 2023

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Easy sub moa, gas port is fine

18”, Tried the three factory loads, all were sub moa. average about .75moa. Best group of the day was .3moa with white box match, someone else shooting. Didn’t notice anything weird with gas port size, ran fine. Good barrel, don’t hesitate to buy.

by Pnw on July 02, 2023

Verified Purchase

Was this review helpful? 2

Very impressed

This barrel is a consistent half inch barrel. I have shot everything from 65 grain Vmax to 108 ELD Match and everything had stayed within 0.550. Dont hesitate buying this barrel.

Looks Great No Machine Marks

Not sure what happened with the other reviewer, but after careful bore inspection and review of the M4 feed ramps, I have come to the conclusion that this was a very well made barrel as I have come to expect from Faxon. Absolutely no feeding problems what so ever, and as for accuracy, I will have to update as soon as I get to the range. The QC seems spot on with the barrel I received as well as the markings made (as commonly seen with Faxon barrels) on the barrel extension to ensure inspection. Thanks to Brownells for offering a high quality barrel at such a great price.

6MM ARC Barrel 20in 1-8 5R Rifle 5/8-24

shot 20 rounds of honady match 108gr and got 1.5 in. groups at 100 yrds. loaded up some 87gr vmax and shot 3 hole group in a penny at 200 yrds..so now i have ordered 2 more barrels. great job Faxon.

Nice barrel

I got it pretty quick sighted it in and never had feeding issues, and it shot accurately! Id buy another one for sure!

What not to like

The barrel only shot about1.5 moa with Hornady Match ammo. But I only had one box and cant find anything in 6 arc around here so I reload some 87gr Vmax and Ill let the picture tell the story.will definitely be buying more .Great Job Faxon

I bought two

Outstanding and very accurate. I liked them so much that I re barreled two of my rifles. For my money Faxon barrels are as good as it gets, the combo of Stainless and nitride in a buttoned barrel is perfect.

Worth the wait.

Well made.