The gun I have is marked Apr 30/07. I have it completely disassembled and I have soaked the firing pin for a week now and it won`t come out. It moves about 1/8" out and thats it and back to seated position. Anyone have one out before? It was rusty prior to soaking it. Right at the moment I have it soaking in Seafoam Deep Creep. Thanks,Darcy