CMC Triggers AR-15 Gas Tube – Rifle Length

This CMC Triggers gas tube is a direct replacement for worn, damaged, or corroded rifle-length gas tubes in AR-15 platform rifles. Gas tubes channel propellant gases from the gas port in the barrel back to the bolt carrier group, cycling the action. Over time, gas tubes can develop carbon buildup, corrosion, or physical damage from improper installation or removal. Replacing a compromised gas tube restores reliable cycling and prevents short-stroking or failure to eject malfunctions.

Constructed from stainless steel with a corrosion-resistant finish, this tube is designed for rifle-length gas systems (typically found on 20-inch barrels). Installation requires removal of the handguard and gas block, alignment of the gas tube with the gas port and upper receiver gas key, and proper roll pin staking. A roll pin punch set and armorer's wrench are recommended. This is a straightforward upgrade for anyone comfortable with AR-15 disassembly, though first-time builders may prefer professional installation to ensure correct alignment.

• Part Type: Gas Tube
• Compatible Firearms: AR-15 Rifle-Length Gas Systems
• Material: Stainless Steel
• Finish: Corrosion-Resistant
• Installation: Intermediate – Requires Gas Block Removal
• Includes: Gas Tube, Roll Pin