the.com/gunsmith
A blacksmith who decided bullets were more interesting than horseshoes.
means A skilled craftsperson who builds, repairs, and modifies firearms with precision tooling.
from From gun plus smith, the ancient word for a metalworker who shapes by hammer and heat, dating to a time when every weapon was hand-forged one part at a time.
TolerancesWorks to thousandths of an inch, finer than a hair.
Old guildPredates interchangeable parts and the factory line entirely.
Legal weightOften licensed, since the trade is heavily regulated.