I am building my first LR-308. When I got the lower kit I started assembling my finished 80% receiver. The bolt catch wouldn’t irk because my receiver had a different means of attaching the bolt catch. Instead of a pin that slides through a hole in the receiver then through the catch the into another hole, mine has been milled out and a hole drilled and tapped on the left side of the slot where the catch slide in. I’ve search the web for another like it. No luck. Like I said I’m new at this. Any help would be appreciated. Also haven’t found the catch or hardware from the build.