He JG M4 S-System features the quality and features of its latest production run of JG factories with design enhancements that includes an upgraded high torque motor, higher precision metal gear box, and a strong M120 spring.
- JG M4 S-System Upgraded gearbox 400 FPS
- Comes with hi-cap 300 round magazine
- Velocity of 400 FPS using 0.20g BBs
- Included with a battery and charger
- This product is restricted from shipment into the state of New York