I had three Escorts, now have two. (Marineguard 18.5" & Aimgaurd 20")
Receiver is aircraft quality aluminum.
Not compatible with 870 or 500/590.
S&J recently stated they will start modifying Hatsan forends to accept MOE forends sometime in Nov.
BigBoy, the ATI adjustable stock will be fine for NR status.
I have one that I'm not using, but I know how hard they are to find, especially in black, so its staying put in the parts box.