Para P12 guide rod and recoil springs

My para does not always go completely into battery. A gun smith suggested I change the recoil springs. It has two springs, one over the other, that fit on a guide rod similar to that of a 5 inch 1911 only shorter. I ordered a new one from Para. The one I received couldn't be more different. It is like a plunger with a small spring on the rod. The larger one is missing so I need to send it back. I have sent two snail mail letters and many emails (over the past year and a half)to Para but they have not responded. Can anyone tell me what the correct guide rod and recoil spring(s) look like? Thanks in advance.

Problem solved. I finally got through. I had the right guide rod, spring system they used to use but it has been changed and one is one the way. I salute you Para.