Luth-AR BL-04 AR-15 Gas Tube - 304 Stainless Steel - Rifle Length

The Luth-AR BL-04 is a precision-machined gas tube for AR-15 rifles chambered in .223 Remington / 5.56 NATO. Cut from solid 304 stainless steel and finished to Army-spec heat treatment, this rifle-length tube measures 15-3/16" (15.1875") overall and routes the gas bleed-off from the gas block back to the bolt carrier group inside the upper receiver.

The BL-04 is intended for rifle-length gas system builds and serves as a drop-in replacement or upgrade for any standard AR-15 upper that calls for the longer tube. Its stainless construction resists corrosion and wear from repeated cycling, while the precision-machined gas port delivers consistent flow for reliable function. Installation is straightforward - the included roll pin locks the tube into the gas block.

Manufactured by Luth-AR as part of their AR-15 component lineup, the BL-04 ships ready to drop into your next build or service project.