CMMG Rifle Length Gas Tube with Roll Pin

The CMMG Rifle Length Gas Tube with Roll Pin is an essential component for AR-pattern rifle builds and maintenance. This precision-engineered part serves as a critical intermediary in the direct impingement system, channeling high-pressure combustion gases from the barrel back to the bolt carrier group to cycle the action. Whether you're assembling a new build or performing maintenance on an existing platform, this OEM-quality gas tube delivers the reliability that law enforcement and military operators demand in the field.

Manufactured by CMMG Inc., a respected builder of AR-15 components and complete rifles, this rifle-length gas tube is engineered for optimal performance in standard duty and training scenarios. The inclusion of the roll pin ensures secure retention of the gas tube to the barrel extension, preventing unwanted movement or separation during firing cycles. CMMG's commitment to precision manufacturing means this component meets exacting tolerances for proper gas port alignment, directly impacting bolt carrier velocity and cycling reliability.

This lightweight design—at just 0.1 pounds—maintains system balance without adding unnecessary weight to the platform. Ideal for armorer-level maintenance, complete upper receiver assembly, or replacement during rifle rebuilds, this gas tube is a must-have for anyone looking to ensure their AR-pattern rifle operates reliably and efficiently.