-23inch Long Top Rail provide more than enough room for optic & other accessory
9mm Bearing Bushing Advanced Version 2 Gearbox with High Performance Motor
High Quality Steel Gears, Gearbox Shell, and a Polycarb Piston
Metal Adjustable Front and Rear Sights and CNC Upper Receiver with Unique Serial Number
High Strength Polymer Fiber Construction Lower Receiver and Tactical Side-Folding Stock