My PSA AR15/PA10 EPT has a problem of that wire that sits in the Hammer that runs through the connecting pin hole is blocking the connector pin that connects the hammer to the lower. I can lower it with a small screw driver from the end of top of the hammer. Where it catches one of the slots of connecting pin and you have to get it out using a punch to get it out as you lower the damn wire again. There is no way I think I can get it in the lower this way. Or even get it out if I put a better trigger group in.