Forend interchangability

[MP-43]

What forends will interchange between Benellis'? I have an M1 that I recently purchased an M2 barrel for. With the breech ring and longer mag ring base of the M2 barrel, the M1 forend no longer fits. I do not want to modify my existing forend, just find a new one that will fit. No one seems to carry M2 parts yet, so my question is, will the forend of a SBE fit the M1 receiver and the M2 barrel?

 

Thanks