My buddy is selling a rifle and I need to know what to offer him. Here are the stats:
-Sabre Defence XR-15 "M5" flat-top with mid-length gas system, m4 stock, 1/9 twist chrome-lined barrel
-Fixed front sight, flip up rear BUIS
-Daniel Defense Omega rail
-EoTech 512 optic
-Surefire g2...