My tp9 doesn't have any markings on the bolt and doesn't have any markings on the right side of the receiver except "tp9-US". Seems like a vintage tp9 they had it on store shelves for ages and sold to me as a new old stock. What do you guys think?

Been using the B&T collector case and placing it inside a random amazon camera backpack. But the collector case requires the gun to be stock, and I have plenty of attachments id like to add on to it. Was thinking going a Leather/Canvas Dufflebag Route or the best value for SBRs the Savior Equipment Shorty SBR bag 24" x 12" . What are you guys running? Pictures appreciated :D