Gentlemen, I may regret doing this, but I am in need of funds and am am selling my AR. It was built by a reputable gentlemen out of factory new parts. Disclaimer - There was an issue with the gas block (FTF), which he quickly repaired and it now fires .223 flawlessly and without error. The configuration is 5.56, I haven't yet fired any of the chambered caliber since getting it back however. In any case, it's a great rifle and I hate to let it go, but there you have it. It has the following build specs as I bought it last summer: Upper- Mega A4 Barrel and Gas Block- 16" Daniel Defense M-4 Profile, 1 in 7 twist with YHM Lo-Pro block Forend- Vltor CASV-M in FDE BCG- Lewis Machine and Tool (LMT) Charging Handle- BCM Gunfighter Mod3 Muzzle Device- Patriot Ordnance Factory Lower- Rainier Arms Zombie Lower - selector switch "Safe", "Dead", "Undead" (picture is somewhat blurry, sorry) LPK- Stag Stock/Buffer Kit- Vltor IMOD Enhanced w/H-Buffer Trigger Guard- Magpul MOE Grip- Magpul MOE Sights: Magpul MBUS I have since added the following: Surefire A66381 light w/pressure switch EOTECH 552 holographic sight Magpul sling (but I haven't gotten it to fight right) Eight thirty round windowed P-Mags in tan, dark earth and black configuration (3, 3 and 2 of each) - a black thirty round is what I bought it with originally I'm asking 2000.00 shipped to your FFL, and for that I'll add a tan Pelican 1750 case like new and bought last fall, never used. PLEASE make sure this rifle is legal where you live, as I know some state firearm laws will not allow flash suppressors, collapsible stocks, 30 round magazines, etc. Hopefully you live in an AR-friendly state as it is though Thanks for looking, and let me know if you have any questions of interest.