Luth-AR Carbine Gas Tube – AR-15 Carbine-Length Systems

The Luth-AR Carbine Gas Tube is a direct replacement for worn or damaged gas tubes in AR-15 carbine-length gas systems. Gas tubes direct propellant gases from the barrel's gas port to the bolt carrier group, cycling the action. Over time, gas tubes can develop erosion, dents, or corrosion that affect reliability—this tube restores proper function at a fraction of the cost of factory parts.

Manufactured from stainless steel with a corrosion-resistant finish, this tube fits standard carbine-length gas systems (9.75" from gas port to upper receiver). Installation requires removal of the handguard and gas block, plus a roll pin punch—most experienced shooters can complete the swap in 15–20 minutes. A gas tube roll pin is included.

• Part Type: Gas Tube
• Compatible Firearms: AR-15 carbine-length gas systems
• Material: Stainless steel
• Finish: Corrosion-resistant
• Installation: Drop-in (requires handguard and gas block removal)
• Includes: Gas tube roll pin