You need a gunsmith.
the skill you need to be a gunsmith is a good concentration on what you are doing. also you have to love guns and understand them.
the matierials for a metal hammer are wood(trees) and metal ore(from the ground) The matierials for a rubber mallet are rubber (rubber trees)wood(tree) The matierials for a wooden mallet are wood(trees)
You need the services of a good gunsmith.
You need a gunsmith
You need a gunsmith
no
You need a gunsmith.
You need a gunsmith
You would use a filter. Like the ones for gold.
You would start as an apprentice to a gunsmith, and learn the craft of gunsmithing while helping the gunsmith to make or repair guns.
Technically, no you do not have to have a degree, but having a degree from a gunsmith school will allow you to correctly attribute yourself as a "certified" gunsmith, which may help your business grow faster.