I have a A2 DPMS lower that I put a Oly arms HBAR carbine upper on. The upper has a bayo lug, A2 flashider and sights and fixed carry handle. I have shot approx. 1000 rds. through it wiht no problems. I would prefer a local sale for $600.00 OBO. if I have to ship it $650.00. Nothing wrong with the rifle, just need some $ for another AR purcahse. Email for pics or info.