Cyma RPK with autowind drum mags

Selling quite unique RPK with autowind mod. When pressed trigger, drum mag starts winding bbs.  No external wires or switches. Every drum mag is powered by small li-po battery 7.4v. Drum mags have two contacs on top which connect to aeg motor when in gun. You can still use regular ak mags. A relay is located in stock which powers the drum mag.

Gearbox: SHS piston, SHS piston head, SHS cylinder head with bigger rubber pad, Epes double o ring nozzle, solink 18:1 gears, cross bushings, spring guide with bearing, Perun micro mosfet, motor cyma blue edition.

Metal cyma hop up unit with specna arms barrel 509mm, maple leaf bucking and tensioner.

Replica is freshly serviced. Lubed gearbox, clean barrel and new bucking
Front is reinforced with two screws to eliminate typical Cyma wobble
Quick spring change 

The drum mag mod is reliable. I shot about 25k rounds with zero problems
Sellings with two drum mags and two springs 1.7j and 2.3j