The CMMG AR Rifle-Length Gas Tube Kit (brand part number 55DA196) is a 15 3/16-inch stainless steel gas tube sized for an AR-15 rifle-length gas system. It routes propellant gas from the barrel’s gas port back to the bolt carrier group to cycle the action on every shot, and stainless steel construction holds up to that heat and pressure better than a cheap coated tube. CMMG includes the installation roll pin in the kit, so it is ready to drop straight into a rifle-length upper without sourcing a separate pin.

Key Specifications

• 15 3/16-Inch Rifle-Length Gas Tube sized for rifle-length AR-15 gas systems.
• Stainless Steel Construction resists the heat and pressure of the gas cycle.
• Installation Roll Pin Included.
• AR-15 Platform Fitment.
• Under 2 Ounces adds negligible weight up front.
• Complete Kit Format is ready to install with everything needed.
• Directs Gas To Cycle The Bolt Carrier Group, driving the action on every shot.
• CMMG Manufacturing for consistent AR-15 fit and function.

Frequently Asked Questions

What gas system length is this for? Rifle length, at 15 3/16 inches.

What material is the tube made from? Stainless steel.

Does it include the roll pin? Yes, the installation roll pin is included in the kit.

Buy the CMMG Rifle-Length Gas Tube Kit

Keep your rifle-length AR-15 cycling reliably with a CMMG Gas Tube Kit from our AR gas system selection. Order online and we will ship it straight to your door from our Lubbock, Texas gun shop.