The Strike Industries SI-AR-GTM AR-15/M16 Gas Tube Mid Length 11 3/4" is engineered for optimal performance and reliability in your AR-15/M16 rifle. Constructed from premium stainless steel, it resists wear and delivers consistent performance for all shooting enthusiasts. Designed for mid-length gas systems, this gas tube promotes smooth cycling and enhanced functionality. Made from Mil spec stainless steel 304 for durability Includes oversized roll pin for easy installation Manufactured in the USA for superior quality Experience improved shooting performance with the Strike Industries SI-AR-GTM Gas Tube - durability and efficiency at your fingertips.