SBS form 1/factory SBS

[speed6]

I shot a "riot" type semi-auto 12 gauge shotgun for the first time over the 4th weekend ('murica!) and now I need one...but in short-barrel form, of course. What are some good hosts for a form 1 SBS OR what are reliable factory or pre-converted SBSs? Something with a choke would be nice since I want to suppress it, of course, probably with a form 1 can. 12 gauge is OK but if I can I would like a 20 gauge. I already have several 20 gauge shotguns (pumps) and tons of shells and reloading gear for it.

[speed6]

This might be the ticket:

https://en.wikipedia.org/wiki/Benelli_M4

I like the collapsible stock but the ~500 dollar premium it commands is a bit ridiculous.

[Tony M.]

I've got an M1 super 90 factory SBS. It's awesome.

[rb288]

I have a vepr 12 that I have done a form 1 for and am expecting it back in a month or so.
I am having the barrel cut back to 12" when I get the form 1 approved.