Reaper Autocannon

The Reaper Autocannon is a type of Autocannon used predominantly by Chaos Space Marine Terminators.^[1]

However, at the time of the Great Crusade and Horus Heresy they were common in the arsenals of all the Legiones Astartes. Originally designed as a support weapon for Tactical Dreadnought Armour, the Reaper is a compact, rapid-firing autocannon which depends on the strength of Terminator armour to stabilize the weapon and cope with its massive recoil.^[1] Reaper autocannons’ fired mass-reactive explosive shells, that were each capable of killing a Rhino armoured transport on its own. And capable of punching through Tartaros-pattern Terminator Armour's breastplate.^[4]

A larger variant known as the Heavy Reaper Autocannon can be mounted on Defilers.^[5]