I have one. Minor differences from the 500 but still very well made. Most aftermarket 500 parts fit them.
As I take it the foreends are different and not swappable. Buttstocks work though.
I have several Mossberg 88's and 500's and have taken them all apart. Aside from the location of the safety and price, I can't see any difference in them. Barrels interchange 100%. They're made in Eagle Pass, TX.
Flash