The Reaper Autocannon is a type of Autocannon used predominately by Chaos Space Marine Terminators. 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 armor to stabilize the weapon and cope with its massive recoil.[1]
Sources
- 1: The Horus Heresy Book One: Betrayal pg. 233