The Rosco Manufacturing ROS-GT-S-001 Gas Tube Patrol Length Black Nitride is a purpose-built AR-15 gas tube designed to deliver smooth, reliable cycling in Rosco’s proprietary patrol-length gas system. Constructed from heat-treated steel and finished in a durable Black Nitride (Melonite) coating, it offers enhanced corrosion resistance, wear resistance, and fatigue strength compared to standard tubes, making it a dependable upgrade for serious shooters.

This patrol-length gas tube is optimized to run under a handguard, where its robust construction and low-friction finish help it stand up to heat, carbon, and extended range sessions. Ideal for AR-pattern builds using Rosco’s patrol-length gas ports—especially shorter barrels in the 11.5" to 12.5" range—it supports consistent function for training, general range use, and practical shooting. Rosco Manufacturing’s attention to detail and commitment to quality are evident in the precise fit and clean finish of this gas system component.

Key Features:

• Manufacturer: Rosco Manufacturing
• Model: Gas Tube
• Series: Patrol Length
• Finish: Black Nitride (Melonite)
• Platform: AR-15
• Gas System Length: Patrol Length