Golden Eagle JG SR-25 Airsoft AEG Full Metal Lower Receiver Complete with Gearbox, Motor, and Motor Grip
Upgrade-able full metal version 2.5 gearbox with steel gears.
Wired to the rear.
High torque long shaft motor.
High torque steel gearset.
7mm metal bearings.
M120 standard pitch spring.
Metal and polymer ball bearing spring guide.
Extended ported cylinder.
Polymer cylinder head.
Polycarbonate piston body with full steel tooth rack.
Polymer ported piston head.
Extended length polymer air seal nozzle.
Reinforced polymer tappet plate.
Low resistance silver wiring harness.
Full metal lower receiver.