The M310 120mm Smooth-Bore High-Velocity Cannon[1] is an anti-tank weapon that fires High-Explosive Anti-Tank shells at extremely high velocities, the kinetic force adding to the explosive firepower of the shell.[2] It is the main armament of the Grizzly main battle tank, which carries two of these weapons.[3] It is more powerful than the standard M512 Smooth Bore High Velocity Cannon equipped on the standard Scorpion tank.


  1. Halo: The Essential Visual Guide - page 86
  2. Halo Wars: Official Strategy Guide, page 42
  3. Halo Wars, leader cards

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