There are no all plastic guns, except for a very few in a spy museum- it is illegal to make a gun that cannot be detected by standard metal detectors. Yes, that includes polymer (plastic) framed guns like the Glock (they still contain steel). The first mass produced firearm with a plastic stock AND a plastic frame is the Remington Nylon 66 .22 caliber rifle- first made in 1959. The barrel, bolt and a few springs are still made of steel.
Plastic and metal
Most guns in the early years were either made from cast iron and wood parts like a musket, or just iron like the first machine gun. But in modern times guns are made from Aluminum, Steel, or Plastic
Brass, iron, steel, wood, plastic.
Wood, plastic and sheet metal
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The first man-made plastic was known as Parkesine. The first commercially successful plastic was celluloid.
The "First model Rifle" was made in 1923. The first gun was around 1947.
Are you asking about the first Gun or Rifle? The first gun was made in 1935 it was part of the 100 series (100, 122, 177) the first rifle was made in 1899 (the St louis)
The first was the gatling gun invented in 1862
plastic
China
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