I just started to install my rear trunion and noticed that the front rivets for the rear trunion are longer then any I have. The rear of the trunion will take a standard rear AKM long dimple rivet. But the front of the trunion uses the 2 of same type dimple rivets as the rear ones on the front trunion but they are longer. Where can I get the correct ones. Is there a differant AK Builder rivet set that has them? I was hoping to finish the receiver tonight but NO, another hold up. I did a serch on the forum but did not find any other posts about this. At least the receiver is almost finished. But anyone know where I can get them? Please......