G&G MG42 Automatic Insert BOXMAG (automatic model)

1) Increased capacity up to 2900+ balls

2) Simple and reliable mechanism

3) Automatic feed

4) Plenty of battery space

5) Powerful motor.

6) Aluminum gear

7) Recommended 7.4 Lipo

300 + mAh ( enough for 20,000 shots) 

8) JST electrical connection connector

9) Composition (Insert + Hose)

No microphones, pressure sensors, lasers, LEDs, magnets to connect to a machine gun, etc.