02-11-2012, 08:03 PM
I have the AA 19.5 inch Shilen barrel on an upper built by Alexander Arms and am quite happy with it. It is mounted on a lower that was not made by Alexander Arms, but the lower does have the complete JP trigger group in it. When shooter uses decent ammo, the rifle will shoot .65-.75 inch groups easily. I suppose with a higher power scope, or a benchrest shooter pulling the trigger it could do better, but I'm quite happy with the results I get.