All,
So today I assembled the lower for my new BCM upper that arrived. After punching the front pivot pin on final assembly with the upper, it began to bind and is pretty much jammed in there.
I can still open the gun via the rear pin, but it requires me to force it open with a minor amount of work as opposed to it swinging freely.
This doesn't really effect anything in reality as of right now, but I'm wondering if you guys could diagnose what went wrong when it got put together. It takes a punch and some hard whacks to move the pivot pin from the assembled position.