The Ke-D6-W3200 was originally developed for the Midori-Class Scout Ship in YE 32.
These cannons function as deadly antimatter railguns, firing massive 1500kg compressed positron shells at near-light speeds. Each railgun fires a subspace pulse (to provide shield penetration effects) which is used to provide short-term encasement to a packet of compressed positrons (which are suspended with electromagnetic fields until leaving the cannon). The positrons annihilate electrons they come in contact with, thus destabilizing and destroying molecules, and creating a surge of energy through the target.
Anti-matter weapons should not be used in atmospheres.