Luth-AR BL-04B Pistol Length Gas Tube 6.6875" AR-15 - 304 Stainless Steel

The Luth-AR BL-04B is a pistol-length gas tube purpose-built for AR-15 platforms running a pistol-length gas system. Machined from 304 stainless steel and processed to Army Spec heat treatment standards, this tube channels exhaust gas from the gas block back to the bolt carrier group, ensuring reliable cycling on shorter AR pistol configurations.

Measuring 6-11/16" overall, the BL-04B serves as a direct drop-in replacement for factory pistol-length gas tubes. The stainless construction delivers excellent corrosion resistance and long service life under regular firing schedules, and the tube ships with the required roll pin for installation. It is a solid upgrade or spare for anyone assembling, rebuilding, or maintaining a pistol-length AR-15 upper.