The object in the image is identified as a size 2 mass driver cannon, specifically the Klaus & Werner Sledge II Mass Driver Cannon. It is a ballistic weapon that fires various types of ammunition and is recognized for its significant impact. This cannon uses railgun technology to launch high-damage projectiles accurately over long distances. While effective against shields, its magazine capacity is limited, requiring frequent reloading. It has a reduced power cost and EM signature because it does not use energy-based projectiles.