Q LLC GBADJ Gas Block Gas Block Adjustable .750" Silver Steel

The Q LLC GBADJ Adjustable .750" Silver Steel Gas Block gives you real control over your AR's gas system—something shooters building or tuning a rifle often lack with fixed blocks. This adjustable gas block lets you dial in the exact amount of gas flowing back into your bolt carrier group, which means cleaner operation, less wear, and the ability to run everything from suppressed loads to full-power ammunition without short-stroking or over-gassing. That's the kind of flexibility serious shooters and builders need when they're chasing reliability or managing recoil across different setups.

The design is straightforward: one adjustment screw fine-tunes gas flow, and a second screw locks your setting in place so it doesn't drift during shooting. Stainless steel construction resists corrosion, and the gas block is machined to fit .750-inch profile barrels—common on mid-length and rifle-length AR builds. A single set screw at the bottom secures it firmly to your barrel, keeping everything where it belongs. It's the same adjustable-block philosophy Q applied to the Honey Badger platform, proven and trusted by shooters who demand precision.

This is a bare gas block—you'll need to source a gas tube separately to complete your system. That gives you flexibility to match tube length and style to your exact build. Whether you're suppressing a rifle, running a new barrel with different gas port sizing, or simply want the tuning ability serious shooters expect, this block earns its place in a precision AR build.

Key Features

• Infinitely adjustable gas flow using indexed stainless steel set screws
• Lock screw prevents accidental drift of your tuned setting
• Stainless steel construction for durability and corrosion resistance
• Designed for .750-inch diameter barrels
• Barrel retention screw ensures secure mounting
• Lightweight at 0.75 oz—minimal impact on your build

Specifications

Frequently Asked Questions

Will this adjustable gas block fit my AR barrel?

The Q GBADJ is designed for .750-inch profile barrels. If your barrel has a .750-inch diameter gas block journal, you're set. If you're unsure of your barrel profile, check with your manufacturer or measure the diameter of the gas block mounting area on your barrel.

Do I need to buy a gas tube separately?

Yes. The gas block itself is not a complete system—you'll need to source a gas tube that matches your barrel length and desired gas system (pistol, carbine, or mid-length). The adjustable block then lets you fine-tune gas flow once your tube is installed.

How do I adjust the gas flow?

One set screw controls the opening that lets gas into the system; you turn it to increase or restrict flow. A second screw locks that adjustment in place. Start conservative, shoot, and adjust as needed until your rifle cycles reliably without over-gassing.

Is this block suitable for suppressed shooting?

Yes. Suppressed rifles often run hotter with more backpressure, and an adjustable block lets you dial back gas to the level your specific load and suppressor combination needs. That's one of the main reasons shooters choose adjustable blocks for suppressed builds.