You're welcome. I've been shooting 11-87s for a very long time. I finally let a friend have my first one but I still have one. It's a shooter. They are heavy but that helps them to absorb recoil. Mine will shoot dirty or clean and the gas system works exceptionally well as long as no oil is put on it or the magazine tube.
I do recommend that the fire control group be pulled periodically and cleaned very thoroughly. It gets pretty dirty from all of the unburned powder that makes it way there.
I hope you enjoy your 11-87 as much as I've enjoyed mine.
Thanks,
Clark