Unless we're talking about a very high dollar firearm, this should be an easy matter. First, I'd demand the value of the firearm back from the dealer (in writing, certified return receipt mail) and see how he responds. I don't know the structure of the TX court system, but there is probably a small claims court where a plaintiff can seek a money judgement against a defendant, up to a certain amount (usually between $3k-10k), without a lawyer. Basicly you both go before the judge, explain your side, show any exhibits or evidence you may have, and he'll make a decision. Sort of like Judge Judy with out the cameras and the bitchiness from the bench. Its usually quick, easy, and can be done without the expense of a lawyer. You'll want to find the court where the defendant's business is, so get a phone book for that area, open to the blue pages and look for something like small claims court, municipal court, justice of the peace (JP) court, etc. Call the court, explain your situation, and see if thats the proper court to file your action. If its not the right place, ask if they can direct you to the proper court. It may take a few calls, but when you get to the right place, ask if they have a guide or booklet on how to file your own action. Before I became a lawyer, I used this process against clients who didn't pay in two states. In both states the people at the court were more than helpful and provided all sorts of booklets, videos, and materials prepared by the court to aid the non-lawyer in preparing and pursuing his own small claims action. I think there's probably a similar system in TX.