870 Marine Magnum receiver ???

[72mustang]

Is the receiver on the 870 MM a express or wingmaster? Bought one off this site and cycled it for the first time today ( opened only today ) and its butter smooth. Way smoother than my express which makes me wonder if its based off the wingmaster.. or is there really any difference at all????

 

[RePete]

The only difference is the finish.

 

[Duck_Hunter]

wingmaster parts just tend to be polished to a higher degree than the express, you could achieve the smothness in your expres by taking the internals apart and polishing them. Cheaper than buying a wingmaster.