Just gonna throw this out here.. but if you aren't married to the M9 pattern, the old M7 pattern fits a lot better and is much cheaper.
From some googling, the M7's seem to be out of stock just about everywhere I look. I did find one on KnifeCenter.com. Just search Ontario M7-B and it should pop up for you.
So the Ontario M7-B will fit on a 590A1?
Is it only 20" 590A1s that can fit a bayonet lug or are there certain 18.5" models that will work?




























