Depends on how many barrels you SAKO has.

Finnish book ARMA FENNICA says:

"Single barrel SAKO shotgun

Built around a lock mechanism of English origin. The fore-end catch is of the self-tightening type. The gun's folding catch opens from the hammer knob and at the same time the weapon is cocked. SAKO made the wooden parts and assembled the gun. The receiver is made of special aluminium. A test series of appriximately 50 guns was made, but no actual series production was started."

"Double barrel shotgun

Actually this gun is same as FEG BZ 12 but the wooden parts and assembly was made by SAKO. Made 17 pcs test serie in 1970."