TargetTalk

The Kel-Tec sub2000 soft case is 17.5x10x1.5, and might be a smidge too narrow but may also work.

Thanks all for the suggestions! I also found this just now; it looks like it will be a good contender too: https://elitesurvival.com/products/submachine-gun-case (the model for OA96)
It is 17x10"

I'm setting up a Pelican case (with dividers, and padded cases on the inside) for my Pardini FPM and SP. The idea is to not have to lug around the gigantic FPM hard case. A SP is easy enough to find a soft case for; the same cannot be said for a FPM. It doesn't seem that ~460mm/1'6" long soft c...