One-Piece CNC Aluminum Hopup Chamber is more durable and accurate in feeding BB;Improves Firmness of the chamber & stabilizes the muzzle velocity;Unlike plastic chamber which would bend & de-shape, this metal one give you rigidity;Highly recommend for upgraded Airsoft Electric Gun to withstand higher air pressure;Require expert on installing into stock AEG

• 5KU CNC Aluminum Chamber For Marui AK (Blue)

5KU CNC Aluminum Chamber For Marui AK (Blue)5KU