I have about 1k rounds thru this upper. It is in 95% or better shape and shoots MOA. Barrel is chrome lined 1:7, no feedramps, F marked FSB. Nice black upper with no T-marks. I had the Phantom attached by the pros
. I also have black hg's.
I am looking for a 16, 18 or 20" upper with stainless barrel and low round count. Local transaction pref'd. Please check my feedback.