I bought a used 1st generation P3AT cheap ($140.00). The owner said he has had no issues shooting it. Here is my question, with the life time warrenty should I send the gun in to Kel-Tec to have it checked out. And if I do will they update the gun. Also the slide is blued and has some wear on it. I want to have it either re-blued or some type of other finish. I have a good friend who can do the bluing for me. Any other thoughts on refinish. I would think I would need to send the gun to Kel-Tec first and then have the slide refinished. Last question, will Kel-Tec check over the gun or do I have to have a valid reason to send it in. In this case my valid reason is I do not have history on the gun myself and want to be sure it is safe to carry. Anyone with past experiences what Kel-Tec will do in this situation, such as rebuild etc or upgrade the gun from 1st generation to 2nd generation. I have researched though this forum and would apreciate any help and response.