Aero Precision "Click" Adjustable Gas Block - .750 Low Profile

Aero Precision

MSRP: $64.99
Our Price: $55.24
(You save $9.75 )
(10 reviews) Write a Review
Adding to cart… The item has been added

The Aero Precision "Click" Adjustable Gas Block allows the user to finely tune their gas system for any application. This is particularly useful for managing excess gas to reduce blowback on suppressed firearms, or competition builds where the shooter is looking to mitigate recoil.

Note from Phillip: These are Aero's updated version with the Bronze adjustment screw. A properly dimpled barrel is highly recommended for the most reliable installation of these gas blocks under hard use conditions.


  • Standard low-profile design provides great fit under slim profile free float handguards
  • "Click" style of spring and detent adjustment for reliable function under heavy use and recoil
  • Stainless-Steel Adjustment Screw with 15 Adjustment Settings
  • Carbon fouling is channeled to a sacrificial chamber to help prevent carbon locking, as well as provide an access point for solvent in the event carbon locking does occur
  • User-serviceable design allows for service and cleaning of the gas system
  • Knurled Set Screws for reliable installation under heavy use.


  • Machined from 4140 Hardened Steel
  • Black Nitride Finish
  • Compatible with barrels utilizing a .750 gas block journal
  • Attaches to barrel via 10-32 x 3/16 Knurled Set Screws


  • Assembled Adjustable Gas Block
  • One 6" 3/32 adjustment wrench for easy gas block adjustment underneath installed handguard
  • Replacement spring and detent included
  • FREE Gas Tube Roll Pin courtesy of Bexar Arms!

Please note: Aero Precision do not recommend the use of red threadlocker on the threads of the set screws. If you decide to use threadlocker they recommend using the non-permanent variety such as "blue" Loctite 243.


10 Reviews Hide Reviews Show Reviews

  • 5
    Great Gas Block

    Posted by Marc SIZEMORE on Jul 27th 2022

    Fit great - excellent product

  • 5
    Well made gas block

    Posted by Daniel on Feb 11th 2022

    This gas block is top shelf. I’m able to adjust the gas in 223/5.56, 7.62x39, 6.5 Grendel, and 308/7.62x51 to shoot steel and brass with no cycling issues. I’ll also add that these calibers also are used with various barrel lengths with different gas port locations. At a very reasonable price, I can get the gas just right.

  • 5
    Aero Precision Adjustable Gas Block

    Posted by Daniel on Oct 28th 2021

    Aero Precisions adjustable gas block is well made and works great. I’m able to dial in just enough gas for my needs. One thing to consider is buying a longer Allen-wrench if your hand-guard is longer than 14 inches. The tool that ships with the item is only 6 inches long. So if you’re running this on a pistol or Carbine length barrel, consider the handguard, and adding the longer Allen wrench to your toolbox. This gas block is on several of my builds (308, 300AAC, 6.5 Grendel).

  • 5
    Adjustable gas block

    Posted by Javier Perez on Jun 11th 2021

    This product is spot on. Buy with confidence.

  • 5

    Posted by Nguyen Z. on Jun 8th 2021

    Best price for quality product from a quality CO. Shipped fast. Can't complain when it does what its designed to do. Highly recommended

  • 5
    Customer Service

    Posted by Fanboi on Apr 1st 2021

    I have to start with wow! Customer service is not dead! Extremely fast shipping which included a hand written personalized note thanking me by name for the business. I hope to see Bexar Arms continue to grow as I will be a continued patron. or to the product: good price for a good product. works as it should

  • 5
    Aero .750 adjustable gas block

    Posted by Tobias on Mar 23rd 2021

    Easy mounting process, nice tactile clicks while changing gas settings. Will definitely be staying on the AR-10.

  • 5
    Great Gas Block

    Posted by Cameron on Mar 16th 2021

    Half the price of the competitors and does the same thing, plus every Aero product I've owned has worked flawlessly.

  • 5
    Top notch customer service for a great product at an unbeatable price!

    Posted by Eric G. on Mar 13th 2021

    It’s Aero Precision, 5 stars; enough about that. I happened across this website while looking for this specific gas block. It was sold out almost everywhere, except for on It was also listed at the lowest price online to boot. And there’s no mistaking the intent of the Bexar spelling, making it obvious that this place was in my own back yard. I placed my order at 7:42 PM, (yes, post merīdiem) and received an order update at 9:49 PM that my item was in possession at the Post Office. Perfect example of unnecessarily going above and beyond. My gas block arrived as advertised, and as an added bonus I found a complimentary Bexar Arms gas block roll pin and personalized hand written letter of thanks from Phillip thrown in for good measure! I am a staunch advocate for good customer service; a few well-known companies in the business have lost my patronage for not making an honest mistake right. From now on, when I go online to look for parts, my first stop will be Fingers crossed for a brick and mortar location in the not-too distant future.

  • 5
    Great product

    Posted by Jack on Mar 3rd 2021

    Cheaper than aero sells it for. Can't beat the price point or customer service with Bexar