LBE Unlimited Low Profile Gas Block with Rifle-Length Gas Tube – .750" – Black Nitride Steel (ARLGBR)
Upgrade your AR-platform rifle with the proven reliability and precision of the LBE Unlimited Low Profile Gas Block with Rifle Length Gas Tube, engineered for shooters who demand durability, smooth cycling, and consistent gas flow. Designed to fit barrels with a .750" gas seat, this high-quality gas block and tube assembly offers outstanding performance for custom builds, upgrades, and repairs—whether you’re building a precision rifle, modern sporting platform, or tactical-duty firearm.
Crafted from rugged black nitride steel, the LBE Unlimited gas block is built to withstand extreme heat, carbon buildup, and heavy use while maintaining optimal gas regulation. Its low-profile design ensures superior handguard compatibility, making it perfect for free-float rail systems and modern slim-profile builds.
With the included rifle-length gas tube, this all-in-one kit provides everything you need for a dependable, precisely timed gas system.
Engineered for AR Builders, Shooters & Professionals
LBE Unlimited is known for manufacturing mil-spec firearm components trusted by shooters, builders, and armorers alike. This low-profile gas block and tube kit is no exception. Whether you’re optimizing a rifle for long-distance accuracy or building a reliable duty carbine, the ARLGBR offers clean gas regulation, consistent cycling, and rock-solid durability.
Perfect for:
Rifle-length AR-15 builds
Free-float handguard systems
Barrel upgrades
Custom AR projects
Duty and defensive rifles
Key Features & Benefits
✔ Low Profile Design for Maximum Compatibility
This gas block fits easily under:
Slim free-floating handguards
M-LOK and KeyMod rail systems
Most modern lightweight rails
Its compact profile ensures seamless integration and avoids interference with accessories or rail attachments.
✔ Precision .750" Gas Block
Designed for barrels with a .750-inch gas journal, this is one of the most common sizes in AR-pattern rifles. It guarantees:
Ideal for both factory barrels and aftermarket upgrades.
✔ Rifle-Length Gas Tube Included
Comes complete with a rifle-length gas tube, offering:
Perfect for long-range shooters and those prioritizing recoil softness and stability.
✔ Black Nitride Steel Construction
The black nitride finish provides exceptional benefits:
Corrosion resistance
Extended service life
Reduced friction
High heat tolerance
Easy carbon cleanup
This premium finish ensures your gas system runs clean and reliable, shot after shot.
✔ Perfect for AR-15/M16 Rifle Length Systems
Compatible with standard AR-platform builds using rifle-length gas systems. Precision machining guarantees perfect fitment within mil-spec tolerances.
✔ Easy Installation
Designed for straightforward, secure mounting:
Includes roll pin for gas tube installation
Set-screw design ensures firm lockup
Ideal for DIY builders and professionals alike
Why Choose LBE Unlimited?
LBE Unlimited is a trusted manufacturer of AR-15 parts known for:
The ARLGBR Low Profile Gas Block & Gas Tube kit reflects LBE’s commitment to reliability, making it an excellent choice for shooters who demand dependable components that won’t quit under pressure.
Product Specifications
Enhance Your AR Build with a Reliable, Low-Profile Gas System
Optimize your rifle’s performance with the strength and efficiency of the LBE Unlimited Low Profile Gas Block with Rifle-Length Gas Tube (ARLGBR). Built from durable black nitride steel and engineered for precision fit and function, this kit delivers the reliability your AR-platform rifle needs—whether you're at the range, on the hunt, or preparing a tactical setup.
Choose proven durability. Choose consistent cycling. Choose LBE Unlimited.
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