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Ar-15 Low Profile Gas Block .750 - Ar-15 Low Profile Gas Block .750 Black
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$14.97
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SKU: 100036670
Overview
Built for AR-15 setups that use a standard .750 gas-block journal, this low-profile block is intended for rifles where clearance under a slim handguard matters. Its compact profile helps it fit beneath most slim-profile handguards, while the included set screws are designed to secure it in place. Aero Precision notes that a roll pin is not included, and recommends non-permanent thread-locking compound if a user chooses to use it.
Why Hunters Choose the Aero Precision
Fits Standard
.750 gas-block journals for common
Low-profile Design
Fits underneath most slim-profile handguards
Machined From
Hardened 4150 steel for a
Phosphate Coating
Adds protection against corrosion and
Includes Set
Screws to help lock the
Key Features
- Low-profile AR-15 gas block designed to fit under nearly any handguard
- Sized for standard .750 gas-block journals
- Machined from hardened 4150 steel
- Phosphate coating helps protect against corrosion and wear
- Includes set screws to lock the block into position
- Roll pin is not included
Best Used For
- AR-15 builders needing a low-profile gas block for standard .750 gas-block journals
- Rifle setups using slim-profile handguards that require compact component clearance
- Users who prefer set-screw installation and secure positioning on the rifle
- Builders seeking a phosphate-coated gas block for routine service use
Specifications
| Blade Finish | phosphate coating |
|---|---|
| Compatibility | standard .750 gas-block journals |
| Design | low-profile |
| Gas Block Size | .750 |
| Handguard Compatibility | fits underneath most slim-profile handguards |
| Included Hardware | set screws |
| Material | hardened 4150 steel |
| Roll Pin Included | No |
| Thread Locker Recommendation | non-permanent thread-locking compound on the set screws |
Pros
- Fits standard .750 gas-block journals for common AR-15 setups.
- Low-profile design fits underneath most slim-profile handguards.
- Machined from hardened 4150 steel for a solid build.
- Phosphate coating adds protection against corrosion and wear.
- Includes set screws to help lock the block in position.
Considerations & Trade-offs
- Sized for standard .750 gas-block journals, so it is only appropriate for rifles built around that specification.
- A roll pin is not included, so installation may require sourcing that part separately depending on your setup.
- The low-profile design is intended to fit under most slim-profile handguards, but handguard clearance should still be confirmed before purchase.
- Set screws are used to secure the block, and Aero Precision notes that non-permanent thread-locking compound is optional rather than built in.
Suggested Comparisons
- AR-15 gas blocks
- AR-15 upper receiver parts
- AR-15 handguards
- AR-15 small parts and hardware
Suggested Accessories
- AR-15 handguard
- Thread-locking compound
- Roll pin
- Armorer's wrench
Frequently Asked Questions
What gas-block journal size does this low-profile gas block fit?
It is designed to fit standard .750 gas-block journals.
Will this gas block fit under a slim handguard?
The low-profile design is intended to fit underneath most slim-profile handguards on the market.
What comes included with the gas block?
It ships with set screws to lock the block into position. A roll pin is not included.
What material and finish are listed for this gas block?
The long description says it is machined from hardened 4150 steel and has a phosphate coating.
Does Aero Precision recommend thread locker on the set screws?
Aero Precision recommends using a non-permanent thread-locking compound on the set screws if you choose to use thread locker at all.