LanTac USA Rifle-Length +1 Nitride Gas Tube – AR-15

The LanTac Rifle-Length +1 Nitride Gas Tube is an upgraded replacement for standard AR-15 gas tubes, engineered to withstand extended firing schedules and adverse conditions. The +1 designation indicates enhanced length tolerances for improved alignment with gas blocks, reducing installation headaches and ensuring consistent gas port alignment. Shooters replace factory gas tubes to address wear, corrosion, or when building a custom upper receiver.

Constructed from heat-treated stainless steel with a QPQ nitride finish, this gas tube resists corrosion and gas erosion better than standard uncoated or phosphate tubes. The nitride treatment penetrates the steel surface for exceptional durability in high-temperature environments. Installation is straightforward for anyone comfortable with upper receiver assembly—simply align with the gas block and secure with the included roll pin. No gunsmithing required, though proper punches and a steady hand prevent gas block dimple damage.

• Part Type: Gas Tube
• Compatible Firearms: AR-15 Rifle-Length Gas Systems
• Material: Stainless Steel
• Finish: QPQ Nitride
• Installation: Drop-In (Requires Roll Pin Installation)
• Includes: Gas Tube, Roll Pin