I purchased a well-used Colt Gold Cup National Match S/N FN07***E which I was told was manufactured in 1994. The extremely tiny spring for that depressor lever was missing, although the gun functioned but with a terrible trigger. The shop sent the gun to Colt (I live near Hartford, CT) for repair. Colt sent it back saying they did not have that spring available. The store searched and eventually found a spring someplace. Internet searches say the Colt part number is SP52445, I have not found a vendor with it in stock. Information and drawings are available on line if you search hard enough. I have read not to delete the spring and depressor lever without replacing some other parts, although I have no way to verify that information. One person used a tiny spring taken from a watch band pin. It’s really, really tiny and easy to lose and harder to assemble !