Hey Gene, You said on another thread that the Katana was a Disco with a bigger stock, Marauder trigger group and a chocked barrel! Would I be right in saying that a Marauder trigger group would fit a Disco without any mods? If so, is the trigger group of the marauder better and why? Is it a two stage or made of metal? I'm thinking of trying to improve the tigger but due to lack of airgun spares in Spain I think it would be safer to swap parts rather than modify them just in case I screw it up!!