King arms oberland arms oa-15 m7 electric gun

new Full Metal AEG available
7mm ball Bearing Gear Box with 1j power
7 inches Free Floating Rail System with troy flip up sights
solid Outer Barrel (21cm) and crane cqb battery stock (not included)
real function Bolt and bolt catch (easier setting)
300 Rds Magazine Included(can takes also marui m16 magazine)
Length: 650/730mm
Weight: 2800g

technical data
-7mm gear box
-1 joule spring
-7mm ball bearing
-steel gears with delayer
-reinforced piston
-policarbon piston head
-229mm copper inner barrel