870 Express: metal trigger guard and non-sintered extractor

[olympianares]

I apologize if this was covered in a past thread; my google-fu has failed to turn up any results.

Looking to purchase (used) my first 870 soon and i would prefer keeping it original. Before I invest my monies in a wingmaster, i hoping to find an express with the following features:

• metal trigger guard (group?)
• non-sintered (injection molded?) extractor
• wooden stock

Was this combination ever offered in an express or were they reserved for the wingmaster?

Thank you!
Pat