This is a 10.5 6.8 SPC noveske barrel I have had this since 2005 ish maybe 2004 about 200 rounds max down the pipe .
It is a 1-10 twist and has performed flawlessly recently tried to sell the complete upper but decided to keep some parts for another build .
it will come with bolt and gas block larue / tube
I think 275.00 is a fair price make me an offer if you like I am motivated to sell
Also have a Larue 9.0 rail 200.00 or offer