Beginning AK kit builder. I bought a kit without a barrel and when I order one the one I was sent did not have a groove for the barrel pin that goes at the top of the trunion. Do I need to send the barrel back or are there other alternatives?
This is basic so not sure why nobody has responded yet. A new barrel doesn't have a groove because the barrel needs to be pressed in to the proper headspace measurement then the barrel is drilled and pin pressed in to keep the headspace dimension permanent.