Need some help ID'ing this Luger.

[AJGunner]

Thank you for the responses. I'll tack on a couple of pictures of the sides and top. It's hard to get a decent Side pic because of the length of the gun, but I'll do shots of the frame only.

The barrell does appear to be stainless, and it does have the rear attachments for a stock, but it doesn't have one with it (Which I guess is fine, since I wouldn't want it to be illegal.)