King arms 556 holo dark earth electric gun

Full metal model available
1j mecha box with 7mm ball bearing
blow back bolt action with gera box protection
m4 style 5 position slide stock
upper body with flat top rail and battery hand guard (mini/lipo)
190rd magazine (compatible with common m16 magazines)
length: 860/940mm
weight: 2850g

Technical data
-7mm gearbox with ball bearinjg and metal nozzle
-reinforced piston with 1j spring installed
-steel gears with delayer cam installed
-hi torque motor short axle
-430mm inner barrel
the model is sold with removed marks