Cmmg Gas Tube Kit Rifle W/pin

The CMMG Gas Tube Kit Rifle with pin is a precision replacement component for AR15 rifle-length gas systems. This stainless steel gas tube assembly restores or upgrades the gas delivery system in direct impingement carbines and rifles, making it an essential part for serious shooters conducting maintenance, repairs, or custom builds. The included roll pin ensures secure installation and maintains proper concentricity within the gas block.

Constructed from stainless steel, this gas tube resists corrosion and withstands the thermal cycling and carbon fouling inherent to direct impingement operation. The rifle-length designation means it extends the full distance from the gas block to the bolt carrier group, regulating propellant gases for reliable cycling across standard AR platform configurations. CMMG's engineering ensures dimensional consistency and proper fit with mil-spec upper receivers and gas blocks.

This component is ideal for gunsmiths, armorer-level technicians, and experienced builders replacing worn or damaged tubes, or those optimizing gas system tuning on existing platforms. It's also suited for operators rebuilding select-fire or semi-automatic rifles where OEM replacement parts are required. Whether you're addressing reliability issues on a duty rifle or completing a precision build from the receiver up, this kit eliminates the need for separate fastener sourcing by bundling the pin with the tube.