I have a Senda lower that has pin holes that have grown and no longer in spec. With M60Joe no longer taking work, who takes in a M16 lower to evaluate for in spec dimensions. I'm assuming that the sear and hammer pins need to be welded and redrilled possibly other holes as well. I understand the aluminium type makes it more difficult if you are not set up for it.
If anyone knows a quality repair options and ball park pricing, I'd be greatly appreciative.