Used Wilson Combat 11.3" 5.56 NATO AR-15 complete upper receiver with FDE & Black Armor-Tuff factory finish (The receiver and barrel are FDE, the handguard is black). This upper receiver is billet and does not have a forward assist. Comes with the nitride Wilson Combat bolt carrier group and an ambidextrous charging handle. The muzzle device is a SilencerCo ASR 3-prong flash hider which works with SilencerCo QD suppressor mounts. The barrel is 416R Stainless Steel with a 1/8 twist rate. Around 1000 rounds through this upper so plenty of life left in the barrel and small parts.