SerLea submachine gun

[Cutaway]

Found this SMG, it appears to be 2 SMGs held together by the trigger section. It also has a synchronizing device to fire the barrels alternatively, does anyone know how this would work?.

The SerLea is a double barrel 9mm submachine gun of Lebanese origin. The Los Angeles Police Department showed interest in the design, but in 1997 the weapon remained primarily in the hands of specialized firearms collectors.

The SerLea submachine gun was designed by a Lebanese gunsmith and veteran of Beirut street battles. The SerLea was designed to provide a rapid burst weapon for street fighting, twice to that of a conventional submachine gun. The weapon has twin barrels, twin magazines, and twin bolts, with a synchronizing device to turn the weapon into a single high rate of fire submachine gun. The weapon may fire one barrel at a time only if one magazine is inserted.

[SDC]

It might possibly work like the German World War 1 Gast, and the later Russian dual ShKAS's, with a pair of bolts linked together through a toggle that pivots at the midpoint; this means the the recoil of one bolt drives the other forward, and vice-versa, since the recoil stroke is always faster than the feeding stroke.

[Machineguntony]

What is the asking price on such a piece of machinery?