I have a factory assembled Colt 6940 upper and Aero Precision complete rifle for sale. Has about 1000 rounds through it without a hiccup. Built with only the best parts. Here's the parts list: Upper: Colt 6940 monolithic upper 16in Colt M4 chrome lined barrel Colt bolt carrier group YHM flash hider Matech flipup rear site Magpul MOE fore grip Magpul ladder rail covers Lower: Aero Precision lower receiver DPMS lower parts kit Spikes Tactical milspec trigger group KNS antirotation pins Magpul MOE grip Magpul trigger guard Noveske quick detach end plate Milspec buffer tube H1 buffer Magpul CTR stock - milspec Asking $1000 (Sold pending meet to chipster), much less than the sum of those parts. Located in Bellingham, WA. I've also got an aimpoint compm2 with 1/3cowitness mount I can throw in for $250.