Simple installation, light weight and highly adjustable make these bedding columns a perfect fit in nearly all types and sizes of rifle stocks. Feature fully threaded shafts for an exact fit without needing to cut, file or machine. Includes a short front pillar and a long rear pillar. Steel sleeve, .296" inside diameter, 7/16" - 20 tpi, adjustment ring aluminum .560" outside diameter. Front .700", rear 1.16" long. Requires alteration to stock and bedding for installation.