We do offer cutting and threading [https://www.rainierarms.com/cut-threading/] and Kris is only partially correct- we don't have a machine shop on-site so the work wouldn't be done while you wait, but the majority of our gunsmithing and armory work is performed by our staff.
Not in house, they contract their gunsmithing out. Call Liemohn Manufacturering, or Carr Arms, or Bullseye in Tacoma after you have an approved ATF from 1.
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