Gas System PartsAero PrecisionSold by Brownells

Aero Precision

Ar-15 Low Profile Gas Blocks - Low Profile Gas Block .750'''' W/Aero Logo For Ar-15 Nitride

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

Low-profile Gas

Block for AR-15 applications

Fits .750-inch

Barrel gas block journals

Nitride-coated Finish

Aero logo engraving

Constructed From

4150 hardened steel

Uses Steel

10-32 x 3/16 knurled cup-point

$35.99
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SKU: 100054371

Overview

This low-profile gas block is designed for AR-15 builds that call for a compact fit under handguards while maintaining a clean, streamlined profile. It is offered in a .750 size with an Aero logo and nitride finish, and it is also available in other sizes and finishes within the same product line. The block is constructed from 4150 hardened steel and uses steel 10-32 x 3/16 knurled cup point set screws for installation. A roll pin is not included, and Aero Precision notes that non-permanent thread locker is preferred if one is used.

Why Hunters Choose the Aero Precision

Low-profile Design

Supports easier fitment on compatible

Fits .750-inch

Additional size options listed by

Constructed From

4150 hardened steel for a

Available Nitride

Phosphate coating options

Engraved Aero

The Aero logo for a

Key Features

  • Low-profile gas block for AR-15 applications
  • Fits .750-inch barrel gas block journals
  • Nitride-coated finish with Aero logo engraving
  • Constructed from 4150 hardened steel
  • Uses steel 10-32 x 3/16 knurled cup-point set screws
  • Roll pin not included

Best Used For

  • AR-15 builders needing a low-profile gas block for .750-inch barrel compatibility
  • Users wanting an Aero Precision gas block with visible logo branding
  • Rifle setups where phosphate or nitride finish preference matters
  • Builders who want steel set-screw hardware and simple fitment
  • Those assembling a barrel system and sourcing a separate roll pin

Specifications

Blade FinishNitride
Country Of OriginUSA
Fits Barrels0.625, 0.750, 0.825, 0.936 OD
LogoAero Logo
Material4150 hardened steel
Other Finish OptionsPhosphate
ProfileLow profile
Roll Pin IncludedNo
Set ScrewsSteel 10-32 x 3/16 knurled cup point
Thread Locker NoteRed thread locker not recommended; use non-permanent variety if thread locker is used

Pros

  • Low-profile design supports easier fitment on compatible AR-15 setups.
  • Fits .750-inch barrels, with additional size options listed by the manufacturer.
  • Constructed from 4150 hardened steel for a robust gas block body.
  • Available in nitride or phosphate coating options.
  • Engraved with the Aero logo for a branded finish.
  • Includes steel 10-32 x 3/16 knurled cup point set screws.

Considerations & Trade-offs

  • Fits only barrels with a .750" outer diameter, so barrel compatibility should be confirmed before purchase.
  • A 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 option instead.
  • The low-profile design is intended for easier fitment, but it may not suit setups that require a more prominent gas block profile.

Suggested Comparisons

  • AR-15 gas blocks
  • Low-profile gas blocks
  • Phosphate or nitride-coated gas blocks
  • Barrel accessories

Suggested Accessories

  • Roll pin
  • Non-permanent thread locker
  • AR-15 barrel
  • AR-15 upper receiver

Frequently Asked Questions

What barrel size does this low profile gas block fit?

This model is listed as fitting barrels with a .750" outer diameter. The product data also notes that Aero Precision gas blocks are available for .625, .750, .825, and .936 OD barrels.

What finish does this gas block have?

This version is described as nitride. The product data also mentions that Aero Precision gas blocks are available with phosphate or nitride coating.

Is the Aero logo included on this gas block?

Yes. The title identifies this as the version with the Aero logo.

What is included with the gas block?

The product data lists steel 10-32 x 3/16 knurled cup point set screws. A roll pin is not included.

Are there any installation notes I should know?

Yes. The product information says not to use red thread locker on the set screw threads. If thread locker is used, Aero Precision recommends a non-permanent variety.