Complete AR15 UPPER with Sig Sauer red dot sight. Unfired. Specs are Ballistic Advantage 16" 5.56 nato midlength gas system HBAR profile 4150 steel nitrided finish 1 in 7 twist barrel. Low profile gas block. Stainless gas tube. A2 birdcage flash hider. 13" expo arms handguard. Toolcraft full mass complete 5.56 bolt carrier group. Standard Mil spec Charging handle. 7075 Forged Upper Receiver with forward assist, Mil spec dust cover, and M4 feed ramps. Great for a complete ready to go spare upper for your AR15 or build a lower for this upper and have a complete rifle. Professionally assembled and properly torqued barrel. I have about $600 in parts costs alone for this complete upper build and a Sig Sauer Red Dot comes with it. Pictures Coming. Price $475.