Item from Berserk by Kentaro Miura
Rickert's masterpiece — a prosthetic forearm with a built-in cannon that replaced what Guts lost at the Eclipse and gave him back the ability to fight with both hands full.
The cannon arm is Rickert's answer to Guts' missing forearm — engineering in service of stubbornness. It serves three functions: prosthetic hand for gripping weapons, hidden cannon for surprise attacks, and mounting point for a repeater crossbow. Guts uses the cannon creatively — firing point-blank into apostle faces, blasting through obstacles, using the recoil to add momentum to Dragon Slayer swings. It's a weapon that only makes sense for someone fighting the things Guts fights, built by someone who understood that his friend would never stop fighting.
A mechanical prosthetic replacing Guts' left forearm, crafted from iron and fitted with an internal cannon barrel. The exterior functions as a functional hand capable of gripping (including the Dragon Slayer). A concealed mechanism allows Guts to fire a high-explosive blast with devastating close-range power. The design is crude but effective — built for durability, not elegance.
Also known as: Prosthetic Cannon, Guts' Arm