Alright, so I've got an unpinned 14.5" upper that is completely assembled that I have been using on one of my SBR lowers.
Well, I've grown tired of having this spare upper sitting around without a lower and I'm not really looking to spend an extra $250 for a tax stamp plus engraving and waiting a month for the Form 1 to clear.
So, my question is, if I send this upper to you guys (14.5" Colt Barrel, Standard Upper, DD M4A1 RIS II FSP, Surefire SF3P muzzle device) to have the SF3P pinned (it's already installed correctly and rocksetted on), will I have to pay for the dissassembly-reassembly service as well as the pin and weld, or can you dimple/drill the muzzle end for the blind pin and then weld without having to dissassemble? I only ask because with the disassembly-reassembly the price is getting me pretty close to a tax stamp.
Either way, thanks in advance for all the help!