Dave,
I believe, that like it's big brother, the Trail NPXL, the Trail NP is also made in China. Like on the NPXL, it should say so right after the safety warning label on the left side of the reciever, if it is.
The Crosman NPSS and it's newer, re-named version, the Remington NPSS are made in USA.
Trail models have a thumb-hole stock, a weaver scope rail welded to the reciever, sling and mounts, and more power than the NPSS, the NPXL being the most powerful of the three. The Trail NP is in the middle with a bit more power than the NPSS.
Because the Trail NP is closer in size to the Crosman/Remington NPSS, I doubt that it's action will swap into your Super Streak stock. It's the larger diameter reciever of the Trail NPXL that is based on the Super Streak and it's piston uses the same Walther-Talon Hunter seal as the Super Streak does.
May take at least a pint of Bondo to make that swap work !!!

Paul.