I am selling a complete A3 upper that will fit the Colt AR15 with the large front pivot pin. The flat top is a LBC (not Colt or ArmaLite), the barrel is a Colt government model. 1 in 7 twist, A2 FH, bayolug, A2 HG's. Carrier assembly is new and is from ArmaLite, so is the charging handle. Not even shot yet, much less sighted in. Everything is sweet, ready to drop on your Colt. Color is in between black and charchol. Not light, but not midnight black either. $450 shipped.