Enhance the performance of your AR-15 or M16 rifle with the Strike Industries SI-AR-GTR Gas Tube in Rifle Length. Engineered specifically for a barrel length of 15 1/8 inches, this gas tube ensures smooth and reliable operation for your firearm. Constructed from high-quality stainless steel, the SI-AR-GTR Gas Tube stands out in durability and longevity. With precision engineering, it eliminates gas leaks and malfunctions, improving cycling and reducing felt recoil. Mil spec stainless steel 304 Oversized roll pin included MADE IN USA Upgrade your rifle with the Strike Industries SI-AR-GTR Gas Tube and enjoy enhanced accuracy on the range.