Yes, the nationwide stolen firearms registry is maintained in the NCIC (National Criminal Information Center) computer which is not accessible to anyone but law enforcement. If you have a question about a specific firearm, just take it (SECURELY WRAPPED) to your local law enforcement agency and ask that it be checked.
You need a lawyer.
No. Some enthusiasts of a particular gun may keep serial number lists for historical research, but there is no central database of all guns.
I would contact the department of public service (State Troopers) or The Texas Rangers. There are also a few stolen gun posts on some of the bigger gun forums and databases
Probably not online, but any local police station can run the serial number and tell you. If it did turn up stolen, you wouldn't be in any trouble, but you would lose the gun.
call the state police and give them the serial number off the weapon or take it to a gun shop and have them do a check, but if you were smart and bought the gun legally at a gun show or gun dealer the gun will most likely not be stolen due to the background check and gun registry, also if you purchased the gun off of any tom, dick ,or harry and did not have it registered to you, when you call the police or take it to a gun shop to have the serial number checked you will be going to jail because it is a felony to buy a gun and not have it registered to you .
what gun are we talking about here
Some makers offer historical letters. No, there is no registry that you can access.
For the simple reason that there is no valid reason to have a registry.
Gun registration is regulated by state. There is no federal gun registry, yet. You have to check with your state's gun laws.
Contact your local police department and give them the serial number. The Police can check on the stolen gun list maintained by the BATFE. If the gun is stolen, the Police will conficate the piece and begin investigation of how it was acquired.
Contact the police.
Expect the police to expect YOU to explain how you came to possess a gun that had been stolen- just like any other property.