If you are looking for just the penetrator without the sabot sections, I konw of two places that have them locally (one only at each place):
www.sciplus.com the ultimate surplus or wierd stuff store. They have one at their Geneva (maybe St Charles) Illinois store. If they don't know what you are talking about, ask for Megan Slaker, she is the manager there.
Dawg I am a huge Hobbes fan,I'm not sure but he may be my guru.
Thank You for the amazing shops,I will follow up.
I did call sarco awhile back,sold out.
The rod with the sabot is super cool.
I didn't know anything like that was available.
I honestly don't have any idea how much its worth.
Thanks for all the info.
This is the first place where I find people with real interest
and knowledge .