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Ar-15 Low Profile Gas Blocks - Low Profile Gas Block .625'''' W/Aero Logo For Ar-15 Phosphate
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SKU: 100054363
Overview
Built for AR-15 setups that need a compact gas block, this Aero Precision option is designed for low-profile fitment and is available in a .625 size with an Aero logo. It is constructed from 4150 hardened steel and finished in phosphate, with steel set screws and a knurled cup point design. The block fits barrels with .625, .750, .825, and .936 OD options, giving it a practical role in a range of compatible builds. A roll pin is not included, and Aero notes that non-permanent thread locker is preferred if one is used.
Why Hunters Choose the Aero Precision
Low-profile Design
Supports easier fitment in compatible
Fits .625
Other Aero Precision sizes available
Constructed From
4150 hardened steel for a
Phosphate Finish
Is listed for this version
Includes Steel
10-32 x 3/16 knurled cup
Key Features
- Low-profile gas block for AR-15 fitment
- Fits .625, .750, .825, and .936 OD barrels
- Constructed from 4150 hardened steel
- Phosphate-coated finish
- Engraved with the Aero logo
- 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 .625-inch barrel setups
- Shooters choosing a phosphate-finished gas block with Aero logo branding
- Users wanting a compact fit for builds where clearance is a priority
- Builders who prefer included steel set screws and straightforward installation hardware
- Those sourcing a USA-made gas block from Aero Precision
Specifications
| Blade Finish | Phosphate or nitride coating |
|---|---|
| Country Of Origin | USA |
| Fits Barrel Sizes | .625, .750, .825, .936OD |
| Logo | Aero Logo |
| Material | 4150 hardened steel |
| Profile | Low profile |
| Roll Pin Included | No |
| Set Screws | Steel 10-32 x 3/16 Knurled Cup Point |
| Thread Locker Recommendation | Do not use red thread locker; use non permanent variety if needed |
Pros
- Low-profile design supports easier fitment in compatible AR-15 builds.
- Fits .625 barrel diameter, with other Aero Precision sizes available.
- Constructed from 4150 hardened steel for a robust component build.
- Phosphate finish is listed for this version.
- Includes steel 10-32 x 3/16 knurled cup point set screws.
- Made in the USA by Aero Precision.
Considerations & Trade-offs
- Fits only .625 barrel profiles for this specific variant, so barrel compatibility needs to be confirmed before ordering.
- Roll pin is not included, so installation may require sourcing that part separately.
- Aero recommends against red thread locker on the set screw threads; if thread locker is used, a non-permanent type is preferred.
- Low-profile design is intended for easier fitment, but it still requires proper installation and alignment with the gas system.
Suggested Comparisons
- AR-15 gas blocks
- Low-profile gas blocks
- Phosphate-coated firearm parts
- Aero Precision branded components
Suggested Accessories
- Roll pin
- Non-permanent thread locker
- Armorer's wrench
- Barrel nut wrench
Frequently Asked Questions
What barrel size does this low profile gas block fit?
This model is listed for .625 barrel diameter. The product data also notes Aero Precision gas blocks are available for .750, .825, and .936 OD barrels in other versions.
Is the Aero logo version the only option?
No. The product data says these gas blocks come either engraved with the Aero logo or plain, depending on the version.
What material and finish are specified?
The gas block is constructed from 4150 hardened steel and this version is finished in phosphate. The product data also notes some versions are available with nitride coating.
Does it include the roll pin?
No. The product data states that the roll pin is not included.
Are there any installation notes I should know before using thread locker?
Yes. Aero Precision notes that red thread locker is not recommended on the set screw threads. If thread locker is used, the non-permanent variety is recommended.