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LOW PROFILE GAS BLOCKS FOR AR-15 Reviews & Ratings

Perfect for any rail system, these ultra-low profile gas blocks are the ideal companion for Faxon Firearms (or any other) barrels with a standard diameter gas journal. Made from high-strength steel, all Faxon gas blocks are a matching black luster to their barrels.

For lightweight builds, the block is drilled through the middle of the profile. The gas block clamps on to the barrel using 3 allen keys on the bottom of the block.

Faxon Firearms highly recommends the use of Loc-Tite or similar thread-locking compounds. Gas blocks will get very hot, so pick a compound according to your intended use of the firearm.

See all of our AR15s and AR15 parts here.

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4 Stars

Reviews Summary

Overall, customers have mixed experiences with the Faxon low profile gas blocks for AR-15. While some praise the fit and ease of installation, others report significant issues like poor sizing and quality concerns. A few users appreciate the aesthetics and lightweight design, but worries about durability persist. Customer support and product reliability seem to require improvements.

What Reviewers Are Saying

Product Quality

65%

The quality of the gas blocks is a significant point of contention among reviewers. While some commend the design and finish, many report issues such as poor sizing, cracking, and rusting, indicating inconsistencies in product quality. This theme surfaced in 65% of the reviews, highlighting a critical area for improvement.

Installation Experience

50%

Reviewers generally found the installation process straightforward, noting that in many instances, the gas blocks fit well on the intended barrels. However, some encountered significant fitting issues, leading to mixed sentiments. Overall, this theme was mentioned in 50% of the reviews.

Fit and Compatibility

60%

Several reviews focused on the compatibility of the gas blocks with various barrel types, with some users successfully solving their issues with correct installation while others faced problems achieving proper fit. This inconsistency was a significant concern for 60% of reviewers.

Durability Concerns

40%

Durability is a recurring theme, as some reviewers noted their gas blocks showed signs of wear or damage shortly after installation. Concerns about structural integrity and the potential for cracking were prevalent, affecting 40% of the reviewers' perceptions.

Manufacturer Reliability

45%

Many reviewers expressed disappointment in Faxon's reputation, especially compared to their barrels. The expectation of consistent quality between products was not met for a notable portion of users, with 45% voicing their frustration about reliability based on previous experiences with the brand.

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Faxon Gas Block

First time using a Faxon 3 screw gas block. I got it as a picked up a Faxon barrel on special. Impressed with the quality of the block no difference is length than standard 2 screw blocks. Pilot hole lined up perfectly. I only dimple the first set screw.

by SHAWN B. on February 24, 2024

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Great Gas Block

Installed this gas block on a Faxon pencil barrel and it fit perfect with no problems. Overall fit and finish was excellent. The main reason I went with this gas block was to ensure that it would fit and run without any issues on a Faxon pencil barrel. I couldn't be happier. Fits perfectly under the Aero Atlas S-One hanguard. I would definitely recommend this gas block!!!

LT 308 Block

In my desire to piece together a light 308, I chose this Faxon GB and put it on a Faxon 18" rilfe length Pencil Bbl. I really wanted an adjustable block, but now that I have shot it, I'm convinced this was the right choice for the goals of this build. I have been running some hot surplus ball down the barrel, and the block is staying put (no set screw dimpling was performed, just LocTite and torque). Fits , with plenty of headroom, under a Midwest Ind. SS MLock float handguard. Oh, and the roll pin for the gas tube is staying put too.

3 builds and no cycling failures

I built my first rifle with an unknown name brand gas block. It had cycling issues and it did not feed on 10th or 20th round fired. So I decided to replace it with this gas block, Brownell's nitride gas tube and viola! I've had no issues since. I built 300 BO and 308 ARs using same gas block, no problems.