I am NOT an e-bay devotee, I was informed they won't allow gun sales, but do handle gun parts. I just logged in and under Gun Parts- sub heading Sporting Goods- I saw a Parker Forearm with an ejector forearm iron listed. The seller wasn't sure if it was for a 12 or 16 (his words) and I don't believe there was a serial number listed, but it might be worth looking into- FYI