rifle
Lightweight rifle with a relatively short barrel; biathletes use a .22-caliber rifle that is loaded manually or with a magazine.
shooting slip 
Strap used to stabilize the rifle when shooting from a prone position.
front sight 
Metal aiming device attached to the front of the barrel.
magazine 
Part containing the cartridges, which are automatically fed into the gun barrel.
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.