Using technology from the olden-day Large Hadron Collider, the PAC has a mini-LHC on its back. The PAC uses the mini-LHC to speed up tungsten molecules to extreme speeds, then proceeds to discharge them towards the main bullet. When the main bullet is hit, the tungsten splits up the bullet into a random amount of flechettes. The flechettes and the tungsten proceeds to hit the target at insanely high speeds. The flechettes spead out quickly but the tungsten molecule does not stray from its path.The projectiles hit the target at such high speeds that the target is pushed back. This does not happen for bosses. Every time the PAC shoots, the barrel fractures and needs to be fixed. The mini-LHC on its back makes it very heavy, so you must have a fast character for moving around with this.