Top m4 carbine ultimate ejection electric gun (uem)

new full metal model with cartridge ejection system
semi/full auto selective fire
real simulation blowback action bolt with bb shell ejection
LMT sight and crane battery stock for lipo (not included)
dedicated metal magazine and 30 cartridge are included
length: 760/840mm
weight: 3200g

the electric system is a pefect replica of the real steel function
bbs are contanied in the shells with bb shoots and cart ejectiuon at every cycle
teh metal cartridge can be reused many times if them are not broken
need a lipo battery to store inside the stock crane tube

technical data
-metallic gear box with internal electric board to controll the semi/full shot action
-metal bolt with real blow action and bullet ejection
-sttel gears adn piston for more durable
-adjustable hop chamber for more acuracy
Nb- model is sold with red and black hiders included