Aero Precision Low Profile AR Gas Block

Aero Precision Low Profile AR Gas Block

Product Code:
Calculated at Checkout
$25.49 - $29.99

MPN: APRH100122C / APRH100365C / APRH100366C


  • Aero Precision logo is engraved on the side
  • Comes with two stainless set screws (10-32 x 3/16 Knurled Cup Point)
  • Low profile design for easy fitment
  • Made in the U.S.A.


  • Material: 4150 Hardened Steel
  • Finish: Nitride or Phosphate Coating
  • Length: 1.026"
  • Weight:
    • .625 Model: 1.48 oz.
    • .750 Model: 1.52 oz.
    • .875 Model: 1.55 oz.
  • Height:
    • .625 Model: 1.31"
    • .750 Model: 1.36"
    • .875 Model: 1.43"
  • Width:
    • .625 Model: 0.78"
    • .750 Model: 0.9"
    • .875 Model: 1.03"


  • AR-15 and AR-10


  • 1x Aero Precision Low Profile Gas Block
  • 2x Set Screws


There are a lot of different ways to customize AR platform firearms. While some modifications are ergonomic or even just cosmetic, others change how the weapon itself functions. The ultimate goal of any modification is to create a better shooting experience. Accuracy and control are easy to improve with the right additions to your AR. Muzzle devices, captive buffers, and lightweight components can help to create a weapon system that affords the operator greater control, but if you really want to manage motion on firing, there’s another component that becomes integral to ensure your AR cycles reliably. A quality AR gas block such as Aero Precision’s Low Profile Gas Block is a great way to improve reliability in your gas system.

Gas Management

AR platforms use the gas pressure produced on firing to cycle the bolt carrier group. While a certain amount of pressure is required, most weapon systems create much more pressure than is required for the system to effectively operate. However, a low-quality AR gas block might cause gas leak, therefore, your weapon will not cycle correctly. A high-quality gas block is essential if you want to a weapon that won’t fail on you when you needed it the most.

Low Profile Flexibility

The Aero Precision Low Profile Gas Block comes machined to fit barrels with an outer diameter of either .625, .750 or .875 inches. The low profile stance of the Aero low pro gas block allows it to fit under most free-floating handguards without concerns about clearance. That means you can use it as part of your build without worrying about which forend it will work with.

Quality American Manufacturing

Aero Precision manufactures their low pro gas block in their state of the art facility in Tacoma, Washington. American sourced 4150 hardened steel is precision machined to exact specifications and given a corrosion-free phosphate or nitride coating that will protect your investment wherever you operate.

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8 Reviews

  • LP gas block

    Posted by Timothy Howley on 28th Jan 2021

    Its a low profile fixed gas works as long as you set it up correctly lol. Only odd thing is the set screws are .485", a lot of jigs are .470 or .500 for dimples, so kinda have to make it work. But the gas block is good look and fits under the Atlas very very low profile handguards.

  • Gas block

    Posted by Robert Smith on 7th Oct 2020

    Slid right into place lined right up only thing I would add is a center lineup mark.

  • Great design, seems rugged

    Posted by Randall on 2nd Sep 2020

    Had a 300 blackout that wouldn't cycle with eBay gas blocks (back when you could build a$400 gun). Now it eats subsonic like candy.

  • .750 Gas Block

    Posted by Steve on 27th Aug 2020

    Use this with the Aero Melonite gas tube and you can't go wrong.

  • Gas block

    Posted by Kevin on 4th Mar 2020

    Looks good

  • Aero Low Profile AR Gas Block

    Posted by George on 6th Oct 2019

    Bear in mind this is on a build in progress. It fits snug out of the box, though still loose enough to rotate without marring the barrel.. The dual set screws is nice, however I will need to buy the dimple jig for the second set screw, as my barrel only has one dimpled spot. Fits well with the eagle lite 10 inch quad rail. Does NOT come with gas tube pin. I have not finished this build so my review is of visual and fitment knowledge only.

  • Low profile gas block

    Posted by Mike on 5th Feb 2019

    Great product. Bought a cheaper one for my first build and it caused me problems with short stroking.

  • Prefect fit

    Posted by bo tao on 2nd Jan 2019

    The gas port alignment is spot on. Dimpling the barrel is recommended but not necessary. Apple blue loctie on the base of the set screw, never at the tip, otherwise it would be difficult to remove in the future.

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