Well, I got two lugs in the barrel, but couldn't find finishing nails or proper size stock for pins. Didn't feel like making any either, so I used some old hex keys, 3/32".

Drilled the holes at 3/32" as well, and slotted the lugs some to allow some lateral movement, but none up and down. It's a good fit.

When I get the wood finished, I'll cut them to fit.

Got one more to put in, then I'll finish drilling the tang screws.