rifle (rifled bore)

Portable firearm that shoots a single bullet: the grooved inside of the barrel imparts a spinning motion to the bullet that increases the accuracy of its trajectory.

barrel

Tubular part that guides the trajectory of the projectile.

muzzle

Opening through which the projectile leaves the barrel.

front sight

Metal aiming device attached to the front of the barrel.

trigger guard

Metal piece covering and protecting the trigger.

lever

Device that releases the breechblock to load cartridges into the chamber and eject the spent cases from it.

butt plate

Metal, rubber or plastic covering attached to the end of the stock to reinforce and protect it.

trigger

Device that is pressed to fire the weapon.

rear sight

Articulated graduated aiming device attached to the back of the barrel; the rear sight is lined up with the front sight when aiming.

stock

The bottom part of the gun that is used to hold and aim it.

pistol grip

Part used to grasp and aim the firearm.

hammer

Part that triggers the shot by striking the firing pin, which in turn strikes the cartridge primer causing the powder charge to explode.

breechblock

Movable part that closes the chamber where the cartridges are loaded.

telescopic sight

Optical instrument mounted on a rifle or a measuring device to increase accuracy.