Guns Modify Stainless Steel Dummy Gas Block with Length Tube for AR GBB Series G, Black

What this is. A dummy gas block for AR-style GBB rifles. It looks like a functional gas block but does not route gas or participate in the operating system. You install it for external realism on builds where the gas tube runs elsewhere or where you want the complete upper receiver look without modifying the rifle's internals.

Construction and finish. Stainless steel body with a black finish. The material resists corrosion and surface wear; the finish matches standard black AR externals.

What's included. The gas block and a length tube. The length tube fills the gap between the block and the barrel, completing the visual profile so there is no exposed tubing or awkward spacing.

Compatibility. Designed for G-style AR GBB platforms. Verify your upper receiver uses the G-style gas block mounting pattern before ordering—this will not fit standard M4/AEG upper receivers or non-G GBB systems.

What it is not for. This is not a functional gas block. It will not channel gas to the operating system. If you need a working gas block for a GBBR build, you need a different part.