Believe it or not, the Italians actually mounted a recoiless rifle on a Vespa.....
Hmmm, while I think a 50 Cal Machine Gun or maybe a 30mm Cannon in each Fog Light position might be easier to fit on my Spyder RT, but that recoiless rifle might just fit in there alongside the main spar under the tupperware & with a little fiddling, it could come out alongside an offset headlight...

Probably make for a bit of wide seat & if you don't like the heat that already rises out from behind the glovebox/in front of the seat, then you might want to restrict your rate of fire to something less than 1 round every minute or so :lecturef_smilie: But hey, it'd clear a path for you pretty damn quick, would'nit?! :shocked:
Where do I place my order?? :thumbup: