Anyone know of a good source for parts? I'm looknig for the screw/pin that the bolt release lever pivots on. It's a flat blade screw head with a step that the lever rides on. The pin sheared off right at the reciever where the threads begin. My other option is to re-thread and use a different type of screw. This may be the better option, the existing screw is only about a 2mm shank. Thanks!