Letter: C

The relationship of the axis of the chamber in a revolver cylinder to the axis of the bore.

A shotgun barrel with a uniform interior diameter forward of the forcing cone to the muzzle end of the barrel.

The free longitudinal movement of the cylinder in the frame.

In a revolver, the space between the cylinder and the barrel measured with the cylinder in the rearmost position.

In revolver-type firearms, the rotational movement of the cylinder to bring the next chamber into alignment with the bore.

The pin around which the cylinder of a revolver rotates. This is a feature found on revolvers in which there is no crane. Also called Axis Pin, Base Pin, Center Pin.

A device which permits the swinging out of the cylinder from the frame of a revolver.

A device to stop cylinder rotation in proper alignment with the barrel in a revolver. Sometimes called a Cylinder Latch or Cylinder Bolt.

One of the machined grooves on the circumference of a revolver cylinder that is engaged by the cylinder stop in order to assure barrel and chamber alignment. Also called Bolt Notch.

A multiple barrel firearm designed to fire different calibers or types of ammunition.