Full Metal Construction Body, CNC RAS and Barrel with Polymer Stock and Grips
Flip Up Front & Rear Sight with Bolt Locking & Functional Bolt Catch 
Pre Upgraded QD Gearbox With Bearing Spring Guide and Piston Head
High Quality Steel Gears, Gearbox Shell, Polycarb Piston and a High Torque Motor
Special .308 with AL marking