Letter: S

A button-type trigger, the end of which is pressed to fire the firearm.

An adaptation to a firearm to enable the firing of smaller or lower powered ammunition for which it was originally intended.

A cartridge having a projectile smaller than is standard for the firearm in which it is used.

A tube which is place in the bore of a firearm to enable the firing of smaller or lower powered ammunition.

A wood finish which is achieved by scorching to give a darkened and grainy appearance.

The velocity of a projectile at the highest point of the trajectory.

A device attached to the muzzle of a firearm to reduce the noise of discharge. Sometimes called a silencer.