DS-15 Billet 7075 Aluminum Lower Receiver DSI Forged Sport Upper Receiver (NO Forward Assist or Ejection Port Cover) DSI M16 Bolt Carrier Group DSI 7" Drop-In Quad Rail Forearm DSI Aluminum Top & Bottom Rail Gas Block Carbine Gas System 16" M4 Profile 5.56 Non Threaded 1:9 Nitrite Barrel M4 Style Pinned Stock Spur Gen 2 Grip Magpul PMAG 10 Optic Ready (sights not included) Trigger Lock NY SAFE Compliant - Featureless