I have a Bulgy 74 kit I am finishing up as a screw build on an OOW receiver and have run into a couple of problems.
Problem 1: I can't get the selector in. I know I have to remove the tab on the bottom of it so it can get past the disconnector. That's not the problem. There are two other things going on. One, the screw next to the selector hole is too close. The edge of the selector hits the head of the screw. Unfortunately, I have already Loctited the screw in place. The rear trunion seems to be in the right place. The top cover snaps in nicely (that's why I went ahead and Loctited the screw-everything seemed to be fine). To try and solve this I have been grinding down the back edge of the selector. This has allowed me to get the edge of it away from the head of the screw but it still won't go all the way in. I don't know why. It won't go in far enough to let the groove that is cut in the selector, that would rotate around the wall of the receiver, from going in far enough to rotate downward. It seems to be baaaareeely missing enough room to do so. I'm afraid to simply enlarge the groove because I don't if the selector will be fully in its hole on the left side of the receiver.
Problem 2: I can't get the bolt carrier to go forward unless the hammer is held down by the disconnector. When the hammer snaps up into the cocked position the carrier will get stuck behind it. My S/A trigger kit came with an "extra" piece that I didn't know what do with. It's a bar that is bent in a rounded 90% angle. The instructions for installing the FCG that is linked to the BIY forum doesn't have such a piece. All it has is the trigger, disconnector, and hammer assemblies. Could this be the problem. Or does it have something to do with the selector not being installed. Or is it something else.
If any of these problems sound familiar to anyone out there please help. Thank you very much.
Edited : I fixed Problem 1 with a little grinding but still have Problem 2.