Question: What type of metal are guns made of?
Disambiguated questions and answers: question: What type of metal are gun barrels usually made of?
What type of metal are early european guns made of?
What type of metal were guns made of, favored by gunsmiths?
What type of metal was chiefly used for making are guns in the past?
What type of metal are guns made of, replacing gun metal?
answer: rigid high-strength metal
wrought iron
Bronze and brass
brass
Bronze
Gun metal
red brass
gunmetal
88% copper, 8–10% tin, and 2–4% zinc
steel
Natural Questions answer: steel (from the Wikipedia article "Gunmetal")