This is the guy all of the local shops send their guns too when a job is to big or if the shop doesn't even do gunsmithing. He also does cerekote. I trust him and he does excellent work and believe me I am very very selective. Others here will also verify my recommendation of him.
I can not recommend highly enough Mark Penrod of Penrod Precision. You can find his contact info on the web. He fixed a screw up for me and did superb work and quick turn around.