Rail-gun

Rail-gun, railgun or rail gun may refer to:


 * Railway gun, a large caliber artillery piece mounted on a railcar for rail mobility
 * Railgun, an entirely electrical gun which uses a homopolar motor to accelerate projectiles
 * Coilgun, an entirely magnetic gun which uses a linear motor to accelerate projectiles
 * Helical railgun, combines the railgun and the coilgun
 * Benchrest rifle, also known as a rail gun, a type of rifle that is built into a machine rest.
 * List of electromagnetic projectile devices in fiction, for a list of fictional electromagnetic acceleration guns or "railguns"
 * A Certain Scientific Railgun, a spin-off manga and anime series
 * Mikoto Misaka, also known as "Railgun", protagonist of the spin-off series and a character from A Certain Magical Index series of light novels and anime.