Aim m4 sportline special force electric gun (tan)

new model with 1 joule spring gearbox
reinforced piston and motor
semi/full auto selective fire model
nylon fiber special force body with metal barrel
slide stock nylon handguard with battery housing (not included)
detachable carrying handle with 300rd magazine
lenght: 780/890mm
weight: 2800g

Technical data
-reinforced 8mm gear box 
-1 joule power tempered spring with seal nozzle
-reinforced hi power steel gears
-reinforced piston with polyamide piston head
-hi torque motor long axle
-adjustable hop up with 363mm inner barrel