Thankyou all for your help. Unfortunatly this link shows the disconnect spring but not where or how it attaches. does anyone have a 50 or 51m they can take a pic of? again thanks for your efforts to help. Gun people are the BEST people!

Ok I admit i'm a greenhorn here but I will learn the procedures. I guess I was hoping someone could post a pic or diagram of the disconnect spring. As I mentioned the gun was a real deal & in great shape just need to install this darn spring.

I was hoping someone might be able to help me with this. I bought this gun cheap but it was missing the disconnect spring. I ordered one but can't figure how it goes on. Thanking you in advance....Robsarmory