I bought this gun years ago and just put it away. Just stripped it down and the bottom of the slide has been tapped. One hole has a small allen screw in it and the top has been smoothed over. The other hole is threaded but open. I'll try to post pic with this query. Can't figure out how to post pic. Working on a fairly new iMac.
My question is should they be there. If not I guess I need a new slide? Thanks