It's a 580 series model. My guess from the serial# is that it was made around 2005-2006. I found it in a pawn shop a few years back for $300. It was sent to Carl over at ASI. He did a fantastic trigger job, a propriatary pin style bedding job and installed a new barrel (18", 1 in 7" twist, Wylde chamber)without notching it for the gas block. The gas block fits the barrel instead of the other way around.

It shoots better than the picture shows but that's the best I could manage off a 2X4. I'm taking blame for the flyers whistle

For me it's just a fun to shoot rifle. I need to find a better rest setup that'll stay within the rules and give it another try. I really need to take my AR out next time too.