I'll be sure to call 'em up and see what they have to offer, had no idea there was so much demand on the custom barrel market. Maybe I need to get a couple of spindle machines, a lathe and a brideport, and revisit my favorite pasttime! ( I am not a 'professional' machinist, but I know enough to be dangerous ;) ) Update: I e-mailed Dan Lilja this morning to price a couple barrels, he responded very promptly!!! You can check out Lilja's AR offerings here. I have more information coming on whether or not they do custom AR profiles. Update 2: Apparently, Ballistic Advantage must be VERY BUSY, because I called and couldn't leave a message. Their voicemail box is FULL!!! Man, these guys must have about a decade of backlog, but in the current economy, good for them! I e-mailed adam again, per the voicemail greeting's suggestion. We'll see what happens. Called Accuracy Systems, left a voicemail, hopefully they will be calling back too. Update 3: Lilja doesn't offer custom AR profiles, they have drop-in barrels but they only offer the profiles on the aforementioned page. Still, they're nice barrels and I'm considering buying a 20" model to try out.