Yeah, this was a simple build, and I provided the lower and custom muzzle brake for it. It was in conjunction with some custom work on my Glock as well. The Glock work was finished, but he lost my aftermarket barrel for it. (Supposedly misplaced my custom muzzle brake too) He claims it's at one location or another, and he has to dig through all his stuff from when he moved his shop.
It's been well over 2 years now. I've gotten nothing but excuse after excuse from him when he's responded. I've had him do more than a few custom projects for me in the past, it's always taken far longer than he originally claims it will take, but I've always been happy with his work. This however, I'm beyond words.
At this point, I'm getting ready to escalate it to litigation.
Like I said before, best idea I have is to just show up at his shop and ask for all the parts back. Document the visit and what he tells you. That's going to help IF you have to sue him.
You want to make sure he can't claim the parts were abandoned. Save all the emails you sent -- even the ones with no reply. That shows you were still trying to get the work done, and also that he chose not to respond. He had the opportunity to reply to your emails if he disagreed with the content. Silence is acceptance.
The filing fee is $35 to file a small claims civil case at the courthouse. The case will be scheduled within 30 days. If you win, you get your filing fee paid by the defendant. If I remember, there's not much to the form to fill out. No need to attach any evidence or documentation to the form. Save that for the trial.
You also need to serve notice to the defendant via "certified mail restricted delivery, in person or on a resident of the defendant’s home, by a civil process server, by any person who is not a party to the case and is over the age of 17, or by the plaintiff with a witness." Notice is just a copy of the court case filing with the court date. It costs about $16 to use USPS to send a certified letter with signature verification. The signed form you receive back is your proof that notice of the trial was received -- in case he doesn't show up. Notice can also be served in person as stated above. There are forms you'll be provided that can be certified by the servers proving notice was given. Any costs to serve notice are also something the defendant will be paying if he loses.
Make sure you have actual, original receipts for everything. Pictures of the parts would be great, but more than likely stock photos from online are better than nothing. That way, you can show whether any parts he brings to court match what you gave him. If all was in new condition when you took it in, make sure to state that. Otherwise, you might get used parts or depreciated value instead.
On top of proving what you spent on the parts, you should also get a current list of prices for the parts at today's replacement cost, plus an estimate from another gun shop/gunsmith on what they will charge to complete the work.
In most cases, if the new shop charges more, the judge can order the original shop to pay you the difference. If you contracted to do the job for $100, and you wind up getting it done elsewhere for $200, it's on the first guy to make it so you only pay $100 -- as originally agreed.
Any attorney's fees for lawyers you hire are normally not reimbursable in small claims. The process is so easy, most people can do their own research and paperwork with no problem. They have clerks in the courthouse to help answer questions about the process or paperwork.
Good luck!