The Maxim suppressor was made of steel.
Suppressor
Depends on the suppressor. Many are made to be taken apart, soaked in solvent, brushed, and reassembled.
Sometimes it will.
Yes, in general a suppressor can increase rate of fire by 50-100 rounds/ minute.
While not designed to make a gun louder, a muzzle brake usually has that effect.
You have to make one
If you have the time and money, you'd need to make a suppressor from scratch, since the average Thompson was not able to fit a suppressor.
YES! Any firearm that doesn't use a suppressor (silencer) will have a loud sound.
By allowing the gases to expand in a controlled fashion.
Usually suppressors can be screwed on, so there should be notches to screw it on.
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)