M40 106 Recoilless RifleThe M40, known as the 106-mm recoilless rifle, is designed for anti-tank and anti-personnel roles. It is a breech loading single shot weapon with the M8C semi auto, known as the 50 cal spotting gun used to determine the range and the target.The M79 mount with a traversing and elevating mechanism is designed specifically to accommodate the 106.It provides a stable base either on a vehicle or on the ground.