An AR-15 gas tube is a critical component that directs gas from the barrel’s gas port back to the bolt carrier group, enabling semi-automatic cycling in AR-15 rifles. It works with AR-15 barrels (with the correct gas port location), compatible gas blocks, upper receivers, and bolt carrier groups. Available in carbine, mid-length, or rifle sizes, the gas tube ensures reliable operation and cycling in AR-15 builds, making it essential for proper rifle function and customization.
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