Faxon 3 Screw .625" Low Profile Gas Block

(46 reviews)
Current Stock:
Adding to cart… The item has been added

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 our gas blocks are a matching black luster to our 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. 

Specifications (.625"):

  • Barrel Compatibility: .625"
  • Weight: .07 Lbs
  • Width: 1.00"
  • Height: ~1 & 7/32" 
  • Mounting: 3x Screws (Allen Key interface)

Gas block does not include the gas tube roll pin. Faxon includes gas tube roll pins with gas tubes. 


  • 5
    Good, lightweight gasblock

    Posted by Tim on Jun 2nd 2022

    I was surprised how well machined and lightweight this gas block is. Fit on the barrel was perfect and installation was easy.

  • 5

    Posted by Son of slaughter LLC on Apr 29th 2022

    This thing is pretty slick. I really like the three locking screws compared to other companies that only have 2. Run it. Gun it. And don’t worry about it coming loose.

  • 5
    Light weight, great finish

    Posted by Kenneth Taylor on Feb 23rd 2022

    Fit was good, looked nice thru the hand guard, will buy again.

  • 5

    Posted by Jonathon Hurley on Sep 16th 2021

    I have several of these. They are lightweight and work great. No issues. I recommend.

  • 5
    What a great low-profile gas block for the .625" pencil barrel.

    Posted by Mike on Jun 11th 2021

    This gas block is slim and compact, yet has three set screws to assure that it never comes loose. Love it!

  • 5
    Good quality, Lightweight.

    Posted by Drake on Nov 26th 2017

    Very nice product, good price.

  • 5
    Good quality1

    Posted by rolex.smoke@gmail.com on Nov 8th 2017

    Light weight and great quality!

  • 5
    .625" Ultra Low-Profile Gas Block

    Posted by Steve Fay on Sep 20th 2017


  • 5
    If you're looking for a lightweight, low profile, 3 setscrew, .625, quality made gas block, you've found your part.

    Posted by Jimmy Sweatt on Jul 26th 2017

    Excellent quality! Very well made.