
vltor forged upper, 16 inch black hole weaponry 3 groove polygonal match barrel, rock river arms mil spec lower parts kit. Adams Arms piston kit, Vltor casv hand guard with yankee hill machine front flip up iron sights and an A.R.M.S L40 rear sight. 1.5 inch groups at 100 yards. Going to start building an upper for it soon running either the 6.8 spc or the .300 blackout. Leaning to the 6.8 right now for the reach out and touch somebody range.