Jews For The Preservation of Firearms Ownership?
I googled JFPO and found this. I am not aware of this group.
They didn't tinfoil this claim; they laid photocopies of both texts side by side, did the translation and showed where the laws lined up. It's scary; I've got the book somewhere - it was a spiral-bound, inexpensive publication.
Here, I went and looked it up on their site: Gun Control's Nazi Connection
These guys are hardcore defenders of firearm ownership - pretty much the opposite of the "What, me worry?" Jews like Feinswine and Schmucky Schumer.