Receiver: Spec15 Forged Aluminum Receiver Set - Barrel: 5.56 164150V Chromoly - BCG: Phosphate Coated Spec15 BCG - Charge Handle: Spec15 Forged Charge Handle - Trigger: Mil-Spec G.I. Trigger - Gas System: Direct Impingement; A2 Front Sight Gas Block - Muzzle Device: A2 Flash Hider - Furniture: G.I. Grip & M4 Carbine Stock - Handguard: Mil-Spec Two Piece Polymer Handguard - Length: 34 - Weight: 7lbs 7oz