Custom ar built on Rock River lower, fully ambidextrous controls, Geissele SD-E trigger, black hole weaponry stainless 18 in heavy barrel with rifle length gas 1x8 twist and polygonal rifling, Seekins adj gas block, nickel boron bcg, chrome silicon (never wears out) buffer, ejector, and extractor springs, Taccom lightweight buffer, Mueller 4x16x50 illum. reticle scope, titanium firing pin, mbus offset popup sights. Approx 600-700 total round count. Comes with h2 buffer, steel firing pin and a few 30 pmags. Shoots sub 1/2 moa 5 shot groups with nosler 69 gr hpbt match handloads. Would cost $2200 to build today. $1100 OBO Txt 61four-27zero-668three