I just put together an I/O Romanian under folder on an OOW receiver. Everything went slick and quick. Now I can't get the grip screw bushing down into the hole. The rear trunion might be too far forward to allow the bushing to clear the internal piece with the locking fingers; the right stock arm binds up on the head of the selector lever. So, now how do I get the out the pin that goes through the locking piece and the plunger button? Drill a hole in the bottom of the receiver to drift the pin out through? Everything else is good, tight & solid.