So I seem to have made an oops here. I had my AES10B outside and I took the recoil spring off to clean it, and it shot the retention nut somewhere off in my yard, I have no idea where. I need a replacement, but I can't find one anywhere for an AES10B, what are my options? It has a heavy guide rod, and it's a 1975 triangle stamped AES10B, I'm out of ideas here guys.