The Bjørgum pistol is a prototype Norwegian pistol.
The pistol was designed by Nils Bjørgum, a painter by trade. The pistol was drafted to the Norwegian army, but it got rejected after it got four different malfunctions during a 16-round test shoot.
The Bjørgum was operated using a short recoil principle with a rotating barrel. The barrel has a series of interrupted threads for locking. It is known to be very light and very crudely made; in fact, it is so light that many had reservations about shooting the gun. The weapon was fed by a 16-round magazine.