gtram,
BTW, just to let you know the emblem on the barrel lug is not a Natzi emblem. It is know as the Iron Cross. The Natzi's did take the Iron Cross emblem and superimpose the Natzi emblem inside the Iron Cross. But the Natzi's did not develop the emblem.
Also, I had a 223 AA barrel (I just sold it last week) that would shoot the eyes out of flys at 100 yards with the right hand loads. For some reason AA barrels never got real popular, but that 223 I sold was very accurate.
The only reason I sold it was because I bot a 223 T\C rifle barrel that was accurate out to 400 yards. The 14" AA was accurate out to 200 yards.
Just an FYI.
Dave.