Luth-AR .750 Adjustable Gas Block - Manganese Phosphate Finish

Luth-AR .750 Adjustable Gas Block - Manganese Phosphate Finish

Fine-tune your firearm's gas system for maximum reliability and reduced recoil with this AR-15 Low-Profile Adjustable Gas Block (.750" Journal). Machined from durable 4140 chrome-moly steel with a corrosion-resistant black finish, this gas block allows shooters to precisely regulate gas flow to match specific ammunition loads, buffer weights, or suppressor backpressure. By reducing unnecessary gas volume into the receiver, it minimizes bolt carrier velocity, tames muzzle rise, and reduces wear on critical internal components.

Designed for compact clearance, its low-profile silhouette measures just 1.33 inches high, allowing it to fit effortlessly beneath even the slimmest free-float handguards without adding unnecessary weight. The user-friendly design features a front 8-32 metering screw for fine adjustment, paired with a dedicated side set screw that locks your preferred gas setting securely in place against shot-to-shot vibration. Double-inspected for quality control, this USA-made gas block comes complete with dual barrel set screws and a gas tube roll pin for direct installation.

Features

Positive-Locking 2-Screw Adjustment System:
Features a front-facing 8-32 adjustment screw to meter gas flow alongside a side-mounted 4-40 set screw to lock your setting permanently in place against high-recoil vibration.

Heavy-Duty 4140 Chrome-Moly Steel:
Machined from high-strength 4140 steel with a protective black finish for exceptional heat resistance, erosion prevention, and long-term durability.

Slim Low-Profile Handguard Clearance:
Compact 1.33" height and 1.6-ounce weight ensure seamless fitment beneath free-float M-LOK or KeyMod handguards without contact or added bulk.

Dual Bottom Set Screw Mounting:
Attaches securely to standard .750-inch barrel gas journals using two 1/4-20 bottom set screws to ensure rigid, slip-free alignment.

Complete USA-Made Installation Kit:
Double-inspected for precise tolerances and manufactured in the USA, complete with all necessary set screws and a gas tube roll pin.

Specifications