AR-15 Gas Blocks and Tubes

Reliable AR-15 Gas System Components

The gas system is the heart of your AR-15’s operation. High-quality AR-15 gas blocks and gas tubes ensure proper gas regulation, reliable cycling, and consistent performance. At Tactical Expressions, we carry gas system components built to meet the demands of modern AR-15 builds.

AR-15 Gas Blocks

Gas blocks secure to the barrel and redirect gas into the gas tube to cycle the action. Our AR-15 gas blocks are designed for precise fitment and dependable operation, helping maintain reliability across a variety of shooting applications.

Choose from low-profile gas blocks ideal for free-float handguards, as well as options compatible with different barrel diameters and mounting styles.

AR-15 Gas Tubes

Gas tubes carry gas from the gas block back to the bolt carrier group, making proper length and alignment essential. We offer AR-15 gas tubes in common lengths to match carbine, mid-length, and rifle-length gas systems.

Compatibility & Fitment

Our AR-15 gas blocks and gas tubes are designed to work with standard AR-15 barrels and upper receivers. Always confirm barrel gas port size, gas system length, and handguard clearance before installation to ensure proper function.

Build with Confidence

Whether you’re tuning a lightweight range rifle or assembling a performance-focused build, our AR-15 gas system components provide the reliability and consistency needed for long-term use. Explore our selection of gas blocks and gas tubes to complete your build the right way.