So, as we all know, a short-barreled shotgun is illegal here, but an AOW is just fine. Of course, the selection of AOWs in shotgun calibers is rather limited unless you want to find an old Auto and Burglar gun or something of the like. Now, supposing one had a pair of double-barrel shotguns, a band saw, a tig welder and a lot of patience, would it be possible to cut both receivers in half ahead of the breech face (where there's no moving parts), swap the fronts/rears to each one, weld them up and reserialize them, would it be possible to register them both as AOWs on a pair of form 1's at this point, provided the buttstocks never touch them until they're cut into pistol grips. and the appropriately shortened barrels and forends aren't cut to their <18" length.