Very nice AR for sale. The upper is only a couple of months old. The lower is about 2 years old. Olympic lower (forged, not cast. Made in 2008, WELL after the cast lower issues of the past) RRA lower parts kit Magpul MOE grip, black Magpul enhanced trigger guard Magpul UBR stock Magpul BAD lever Redi-Mag BCM upper receiver BCM bolt carrier group Centurion arms 16" cold hammer forged barrel, midlength gas YHM low profile gas block Troy/Viking Tactics 11" extreme battle rail Jerry Miculek muzzle brake installed. I'll also include a SJC Titan brake. All told, it cost me roughly $1,500 to build this rifle. I'll sell it for $1,100 OBO plus shipping to your FFL or FTF near Berks County, PA.