Looky what I found....
AR-15.COM, former site of ar15 community : Domain Names at GunBroker.com
Wonder what something like that goes for anyway? Looks like it has a reserve so God knows if it even sells. Wonder how barfcom feels about it.
They are an excellent AR. They are Two piston driven operated , which makes them more reliable that an ordinary AR. And you can go much longer without cleaning them. They vent their gases away from the bolt carrier which pretty much helps them run cleaner and cooler. Great buy.