LBE Unlimited ARLPGB Low Profile Gas Block .750" Black Nitride

The LBE Unlimited ARLPGB Low Profile Gas Block delivers reliable gas regulation for AR-15 builds requiring maximum rail space and clean aesthetics. This .750" diameter gas block eliminates the bulk of traditional front sight bases while maintaining precise gas port alignment for consistent cycling.

What Makes This Different

The ARLPGB's low-profile design sits flush beneath free-float handguards, providing uninterrupted rail space for optics and accessories. Unlike standard A2 front sight bases that add 1.2 inches of height, this gas block maintains a streamlined barrel profile. The black nitride finish on 4142 steel construction offers superior corrosion resistance compared to standard phosphate coatings, extending service life in adverse conditions.

Key Features

• 4142 steel construction with black nitride finish for enhanced durability
• .750" inner diameter fits standard AR-15 barrel journals
• Low-profile design maximizes free-float handguard compatibility
• Precision-machined gas port ensures proper alignment and consistent function
• Set screw retention system provides secure barrel attachment
• Compatible with standard .750" gas tubes and carbine/mid-length gas systems
• Eliminates front sight tower for unobstructed optic mounting

This gas block performs consistently across temperature ranges from -40°F to 160°F, maintaining proper gas pressure for reliable cycling. The nitride treatment penetrates the steel surface, creating a wear-resistant barrier that outperforms traditional coatings in high-round-count applications. Competitive shooters and tactical users benefit from the reduced weight compared to front sight base assemblies, improving barrel harmonics and reducing muzzle rise.

Technical Specs

• Material: 4142 steel with black nitride finish
• Inner diameter: .750 inches
• Gas port diameter: Standard .093 inches
• Mounting: Set screw retention system
• Weight: Approximately 1.2 ounces
• Compatibility: AR-15 platform with .750" gas journal
• Gas system: Carbine, mid-length, and rifle length
• Country of origin: United States

The ARLPGB gas block represents proven engineering for builders prioritizing reliability and modularity. Its straightforward installation and robust construction make it suitable for both precision builds and high-volume applications where consistent performance matters most.