I received my 336 back in the mail yesterday that I had sent off to have the barrel shortened to "spike horn" dimensions, threaded for suppressor use, action job, and youth stock set installed. Everything looked pretty nice, got excited to go put a few rounds through it, and the suppressor doesn't thread on. They threaded it 1/2x28 instead of 5/8x24 as requested. I double checked the emails and the invoice to ensure I didn't mistakenly ask for 1/2" threads, I didn't.

Not real happy right now. Am I out of line to ask for a refund for the barrel work labor, since they did not perform what was asked, and for them to purchase me a new mount so I can use my .30 cal suppressor with 1/2 threads?