Gas System PartsAero PrecisionSold by Brownells

Aero Precision

Ar-15 Low Profile Gas Blocks - Low Profile Gas Block .936'''' W/Aero Logo For Ar-15 Phosphate

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Low-profile Gas

Block designed for AR-15 applications

Fits Barrels

.936 OD

Constructed From

4150 hardened steel

Phosphate-coated Finish

Engraved Aero

The Aero logo

$29.99
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SKU: 100054365

Overview

This low-profile gas block is designed for AR-15 builds that need a compact fit under handguards while matching a .936 barrel profile. It is made by Aero Precision from 4150 hardened steel and finished in phosphate, with the Aero logo engraved on the body. The design uses steel 10-32 x 3/16 knurled cup point set screws, and a roll pin is not included. For builders, it offers a straightforward option when assembling or replacing gas system components without adding unnecessary bulk.

Why Hunters Choose the Aero Precision

Low-profile Design

Supports easier fitment on compatible

Fits .936

Additional size options listed by

Available Aero

Aero logo engraving for a

Constructed From

4150 hardened steel for a

Offered Phosphate

Phosphate or nitride coating options

Key Features

  • Low-profile gas block designed for AR-15 applications.
  • Fits barrels with .936 OD.
  • Constructed from 4150 hardened steel.
  • Phosphate-coated finish.
  • Engraved with the Aero logo.
  • Includes steel 10-32 x 3/16 knurled cup point set screws.
  • Roll pin not included.

Best Used For

  • Hunters building or maintaining an AR-15 with a .936 barrel profile and low-profile gas block fitment.
  • Users wanting an Aero Precision gas block with a visible logo option and phosphate finish.
  • Rifle builders needing compatibility with .625, .750, .825, or .936 OD barrels.
  • Those who prefer a low-profile setup for a cleaner fit under handguards.
  • DIY installers comfortable sourcing a separate roll pin and following thread-locker guidance.

Specifications

Blade FinishPhosphate or nitride coating
Country Of OriginUSA
EngravingAero Logo or plain
Fits Barrel Diameters.625, .750, .825, .936 OD
Material4150 hardened steel
ProfileLow profile
Roll Pin IncludedNo
Set ScrewsSteel 10-32 x 3/16 knurled cup point
Thread Locker NoteRed thread locker not recommended; non-permanent variety recommended

Pros

  • Low-profile design supports easier fitment on compatible AR-15 setups.
  • Fits .936 OD barrels, with additional size options listed by the manufacturer.
  • Available with Aero logo engraving for a branded, finished appearance.
  • Constructed from 4150 hardened steel for a robust gas block build.
  • Offered with phosphate or nitride coating options.
  • Made in the USA by Aero Precision.

Considerations & Trade-offs

  • Fits barrels with .936 OD only, so it is not a universal option across all AR-15 setups.
  • Roll pin is not included, so installation may require sourcing that part separately.
  • If thread locker is used on the set screws, the manufacturer advises against red thread locker and recommends a non-permanent variety.
  • The low-profile design is intended for easy fitment, but it still requires proper alignment and installation for the specific barrel size.

Suggested Comparisons

  • AR-15 gas blocks
  • Low-profile gas blocks
  • Phosphate-coated rifle components
  • Aero Precision branded accessories

Suggested Accessories

  • Roll pin
  • Non-permanent thread locker
  • Armorer’s wrench
  • Barrel installation tools

Frequently Asked Questions

What barrel size does this low profile gas block fit?

This model is listed for barrels with a .936 OD. The product data also notes that Aero Precision gas blocks are available for .625, .750, .825, and .936 OD barrels, but this specific item is the .936 version.

What material is the gas block made from?

The product data states it is constructed from 4150 hardened steel.

What finish does this gas block have?

This product is described as having a phosphate coating.

Does this gas block include the roll pin?

No. The product data says the roll pin is not included.

Are there any installation notes I should know about?

Yes. Aero Precision notes that red thread locker is not recommended on the set screw threads. If thread locker is used, they recommend a non-permanent variety.