I haven't had a situation like that, but I think a reasonable approach would be to give them a chance to make it right... first make sure you let them know ALL the problems (the finish issues and especially the failure to fire issues). If they say they fixed it and send it back to you, then do the same series of test fires with various ammo to ensure that it is indeed fixed. If so, then problem solved and you should have confidence it it. If it still is failing then at that point I would ask them for a replacement gun. The third possibility (less likely) is that they will tell you it can't be fixed and just send you a replacement or refund...not sure if that ever happens! It is a pain in the *** to have to deal with stuff like this with a new gun for sure, so I feel your frustration.... Good luck!