Just did a transfer from an online purchase thru The Island Armory in Warren. Twenty bucks. They do still exist.
Everything went smoothly and they have a real business location (by appointment). Seems like everyone else is charging 40+ nowadays.
They also do CPL training, AR-15 build classes, NFA Class III stuff (probably more)
I'm not affiliated with them at all but I'll gladly promote them based on my recent experience.
Again, I'm not being compensated at all, just happy with the $20 dollar transfer.