I find myself with a TP9 stock kit originally purchased DSA for the B&T TP9, and I think I'm going to be moving to a non-free state so getting a SBR TP9 is probably not in the cards right now. I am uncertain if this stock has even been installed, but all the parts are there and it is in like new condition. This is a genuine Swiss B&T part.
Above is the link to DSA for the item. Be aware, DSA will NOT sell you a stock for the TP9 unless you show them an Approved Form1/4 for the SBR. They also charge for shipping, and these are often out of stock with delivery dates of "Maybe next month". These are rare to come by.
Asking $140 shipped, and I don't need to see your tax stamp, it's none of my business, however really, all NFA rules apply.