One Horse OH-GT04 AR-15 15" Rifle-Length Stainless Gas Tube

The One Horse OH-GT04 is a rifle-length gas tube engineered for the AR-15 platform. At 15 inches long, it is designed to pair with a rifle-length gas system, routing propellant gas from the barrel's gas block back to the bolt carrier group to cycle the action reliably under standard and free-float handguards.

Constructed from stainless steel for corrosion resistance and long service life, the OH-GT04 is a direct-fit replacement or build component for AR-15 upper receivers set up for the rifle-length gas position. The slim stainless profile installs in place of a factory tube during a new build, a handguard swap, or a repair on an existing rifle-length upper.

Whether you are assembling a new AR-15 rifle-length build or replacing a worn or damaged tube on an existing upper, the One Horse OH-GT04 delivers the durability and dimensional accuracy needed for consistent cycling. Made in the USA.