I am looking to possibly file my form 1 to SBR my Pioneer Arms PPS43C to SBR it by making the stock functional. But before I do that, I am wondering after I receive the stamp if I can legally have a gunsmith do the work? I have the parts and thought I could do it myself but I think I would botch it up. It doesn't look that difficult, but I am wondering if a gunsmith can do the work after the stamp is received. Any input would be appreciated.

Thanks!