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Ar-15 Low Profile Gas Blocks - Low Profile Gas Block .875'''' W/No Logo For Ar-15 Phosphate
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$22.49
List Price: $29.99
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SKU: 100054368
Overview
This low-profile gas block is intended for AR-15 builds where a compact fit is needed under the handguard. It is offered in a plain, no-logo version with a phosphate finish and is sized for .875 OD barrels. Aero Precision lists it as constructed from 4150 hardened steel and supplied with steel 10-32 x 3/16 knurled cup point set screws. The roll pin is not included, and the product notes advise using only non-permanent thread locker if one is applied.
Why Hunters Choose the Aero Precision
Low-profile Design
Supports easy fitment on compatible
Fits Barrels
.625, .750, .825, and .936
Constructed From
4150 hardened steel for a
Phosphate Finish
Is listed among the available
Plain, No-logo
Version offers a clean, understated
Key Features
- Low-profile gas block designed for AR-15 applications.
- Fits .875-inch barrel diameter.
- Plain, no-logo version with phosphate finish.
- Constructed from 4150 hardened steel.
- Uses steel 10-32 x 3/16 knurled cup point set screws.
- Roll pin not included.
- Made in the USA.
Best Used For
- Hunters building or maintaining AR-15 setups with compatible barrel diameters.
- Users wanting a low-profile gas block for straightforward fitment under handguards.
- Shooters who prefer a plain, no-logo component on their rifle.
- Owners selecting between phosphate or nitride finish options for their build.
- Builders who need included steel set screws and can source a separate roll pin.
Specifications
| Blade Finish | Phosphate or nitride coating |
|---|---|
| Country Of Origin | USA |
| Fits Barrels | 0.625, 0.750, 0.825, 0.936 OD |
| Logo | No 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 Note | Red thread locker not recommended; use non-permanent variety if needed |
Pros
- Low-profile design supports easy fitment on compatible AR-15 setups.
- Fits barrels with .625, .750, .825, and .936 OD options.
- Constructed from 4150 hardened steel for a robust build.
- Phosphate finish is listed among the available coating options.
- Plain, no-logo version offers a clean, understated appearance.
- Includes steel 10-32 x 3/16 knurled cup point set screws.
Considerations & Trade-offs
- Roll pin is not included, so installation requires sourcing that part separately.
- The low-profile design is intended for fitment, but the product is limited to the listed barrel outside diameters: .625, .750, .825, and .936 OD.
- This version is plain/no-logo, which may be preferable for a clean look but offers no branding detail on the part itself.
- If thread locker is used on the set screws, the manufacturer recommends a non-permanent variety rather than red thread locker.
Suggested Comparisons
- AR-15 gas blocks
- Low-profile gas blocks
- Phosphate-finished firearm components
Suggested Accessories
- Thread locker (non-permanent)
- Roll pin
- Barrel nut wrench
- Armorer's tools
Frequently Asked Questions
What barrel size does this low profile gas block fit?
This product is listed as fitting barrels with .625, .750, .825, and .936 OD sizes. The title also identifies this specific version as .875.
Does this gas block come with a logo?
This version is described as "No Logo" and plain. The product data also notes that Aero Precision offers versions engraved with the Aero logo or plain.
What material and finish are listed for this gas block?
The product data states it is constructed from 4150 hardened steel and offered with phosphate or nitride coating. This specific listing is for phosphate.
Is any installation hardware included?
The set screws are listed as steel 10-32 x 3/16 knurled cup point. The roll pin is not included.
Are there any installation notes I should know before using thread locker?
Yes. The product notes say red thread locker is not recommended on the set screw threads. If thread locker is used, the non-permanent variety is recommended.