The CMMG Mid-Length Gas Tube Kit (brand part no. 55DA1EE) is a stainless steel gas tube sized specifically for an AR-15 mid-length gas system, sold with the installation roll pin included. Because gas tube length is gas-system specific, CMMG notes this tube will not fit a carbine or rifle-length barrel’s gas system, so it is important to confirm your barrel’s gas system length before ordering. The stainless construction resists corrosion better than a standard carbon steel tube over years of firing. Builders swapping a bent, pitted, or worn gas tube on a mid-length upper get a correctly matched part with the hardware needed to install it.

Key Specifications

• Mid-Length Gas System Fit is sized specifically for AR-15 mid-length gas systems.
• Stainless Steel Construction resists corrosion better than standard carbon steel.
• Roll Pin Included supplies the hardware needed for installation.
• Not Carbine/Rifle-Length Compatible since gas tube length is system-specific.
• AR-15 Platform Fit is built for standard mid-length AR-15 uppers.

Frequently Asked Questions

Will this fit a carbine or rifle-length gas system? No, it is sized specifically for mid-length gas systems only.

Does it include the roll pin? Yes, the roll pin needed for installation is included.

What is it made of? Stainless steel.

Buy the CMMG Mid-Length Gas Tube Kit

Replace a worn or bent gas tube with the CMMG Mid-Length 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.