G&g m4 cqb ras raider tan electric gun (blowback)

electric model with semi/full auto selective fire 
8mm reinforced gearbox with 1j spring installed
pneumatic blowback bolt at every shoot
retrachable stock and 10.5 inches metal barrel
reinforced nylon fiber body with metal rail system
retractable crane stock with battery housing and sling plate
450rd magazine included
fit g&p/lipo battery for crane type stock (not included)
Weight 2680 g
Length 680/760mm

Technical data
-reinforced 8mm gear box with metal bearing
-1 joule power tempered spring with seal nozzle
-reinforced steel gears with alluminium cylinder
-reinforced piston with polyamide piston head
-hi torque motor long axle
-adjustable hop up with 247mm precision inner barrel