Faxon Firearms 3 Screw Adjustable AR-15 Gas Block - 2 Sizes Available

from$73.60
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Product description

Faxon Firearms 3-Screw Adjustable Gas Block with Anti-Fouling Design

Features

  • Patent-pending anti-fouling design prevents adjustment screw carbon contact
  • Precision gas flow control with 14 tactile adjustment settings
  • 3-screw mounting system for enhanced security and stability
  • Dual adjustment tool compatibility – 3/32″ Allen key or flathead screwdriver
  • Low-profile design for maximum handguard compatibility
  • Optimized for both suppressed and unsuppressed shooting
  • Carbon fouling resistant for consistent long-term performance
  • Rugged construction for intensive use applications

The Faxon Adjustable Gas Block solves the critical problem of gas system fouling that plagues traditional adjustable blocks, where carbon buildup causes adjustment screws to seize over time. Its revolutionary patent-pending design positions the adjustment mechanism away from gas port carbon, ensuring reliable operation even after thousands of rounds. This precision-engineered component allows shooters to optimize their AR-15’s cycling for different ammunition types, suppressor use, and environmental conditions while maintaining consistent performance that traditional gas blocks cannot match.

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Specifications

  • Brand: Faxon Firearms
  • Model: 3-Screw Adjustable Gas Block
  • Type: Low-profile adjustable gas block
  • Mounting: 3 set screws
  • Length: 1 inch
  • Adjustment Range: 14 tactile settings (fully open to fully closed)
  • Adjustment Tools: 3/32″ Allen key or flathead screwdriver
  • Available Sizes:
    • .750″ gas journal compatibility
    • .625″ gas journal compatibility
  • Material: Steel construction
  • Finish: Black
  • Platform: AR-15

What’s Included?

  • 1x Faxon Adjustable Gas Block (size as selected)
  • 3x Set screws
  • 1x Installation instructions
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Customer reviews 2

JP Verified buyer
I bought the Faxon adjustable low profile gas block because I didn’t want to deal with carbon locking up the adjustment screw. This gas block is truly low profile and fits nicely underneath a STNGR hand guard. Installation was as easy as any other gas block. Just remember to add loctite before you put your hand guard back on. Not sure if they are all shipped this way, but mine was set to a closed / no gas position (all the way forward). Finding the right setting for my 300 blk only took 5 rounds of supers and 5 rounds of subs, all now ejecting at 3 o’clock with good lock back. The adjusting was a bit of a pain due to my rifle setup. I had to pull the can between shots and it takes a very long screw driver to access the adjuster. The provided allen wrench was useless to me. It solved the problem of over gassing. Depending on your set it, it’s not going to be an adjust on the fly kind of thing though.
Timothy Verified buyer
Quality is off the charts and easy to use and worth the price. I have 3 of them now and works on short barrels or long barrels.
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Warranty & returns

Backed by the Faxon Firearms Warranty!

90-day no-hassle returns

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

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