Image unavailable
Ar-15/M16 Low Profile Gas Blocks - Ar-15/M16 .625 Low-Profile Gas Block
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$44.95
View on Brownells
You'll be taken to Brownells to complete your purchase.
Hunter's Outpost earns a commission from affiliate links at no extra cost to you.
SKU: 100014216
Overview
Built for AR-15 and M16 barrels, this low-profile gas block is intended for builds where a compact profile is needed under most handguards. It is machined from steel to Mil-Spec tolerances and finished in phosphate, with set screws included for mounting. The .625" inside diameter version offers a straightforward fit option for compatible setups. For hunters and shooters assembling or upgrading a rifle, it provides a practical, no-frills component for a clean under-handguard installation.
Why Hunters Choose the Bravo Company
Low-profile Design
Fits under most handguards
Ar-15 M16
Barrels
Machined From
High quality steel to Mil-Spec
Includes Set
Screws for secure mounting
Phosphate Finish
Adds corrosion and wear resistance
Key Features
- Designed for AR-15 and M16 barrels
- Low-profile design fits under most handguards
- Machined from high quality steel to Mil-Spec tolerances
- Includes set screws for mounting
- Phosphate finish for corrosion and wear resistance
- Available in .625" or .750" inside diameter
Best Used For
- AR-15 or M16 builders needing a low-profile gas block that fits under most handguards
- Shooters selecting a .625-inch barrel setup for a compact, unobtrusive gas block
- Users wanting a steel gas block with included set screws for straightforward mounting
- Builders looking for a phosphate-finished gas block for general wear and corrosion protection
Specifications
| Blade Finish | Phosphate finish |
|---|---|
| Fits | AR-15 and M16 barrels |
| Handguard Compatibility | Fits under most handguards |
| Height | 1.34" (3.4cm) |
| Inside Diameter | .625" |
| Length | 1" (2.5cm) |
| Material | Machined steel |
| Mounting Hardware | Includes set screws for mounting |
| Profile | Low-profile |
Pros
- Low-profile design fits under most handguards
- Designed for AR-15 and M16 barrels
- Machined from high quality steel to Mil-Spec tolerances
- Includes set screws for secure mounting
- Phosphate finish adds corrosion and wear resistance
- Available in .625-inch and .750-inch inside diameters
Considerations & Trade-offs
- Sized specifically for .625" barrels, so it is not a universal fit and must match the barrel diameter exactly.
- Low-profile design is intended to fit under most handguards, but handguard clearance should still be confirmed for the specific build.
- Mounting relies on included set screws, so proper installation and alignment are important for a secure fit.
- The phosphate finish offers a utilitarian protective finish, but it is not a decorative or high-polish appearance.
Suggested Comparisons
- Standard-profile gas blocks
- Adjustable gas blocks
- Free-float handguards
- AR-15/M16 barrel accessories
Suggested Accessories
- AR-15 handguard
- Gas tube
- Set screw installation tool
- Thread locker
Frequently Asked Questions
What barrels does this gas block fit?
It is designed to fit AR-15 and M16 barrels, and this version is the .625 low-profile gas block.
Does it fit under most handguards?
Yes. The short description states it is a heavy-duty low-profile block that fits under most handguards.
What is included for installation?
The product includes set screws for mounting.
What finish does it have?
It has a phosphate finish.
What size and dimensions are listed?
This version is listed as .625 inside diameter. The provided specs also list it as 1.34 inches high and 1 inch long.