KJ Works M4 V2 GBBR (needs new Hopup), full metal, heavy blowback, NPAS filter installed, 6 mags (STANAG style)

KJ Works m4 version 2 GBBR, with NPAS filter installed. Used. Hop-up is broken and needs to be replaced.
NPAS filter allows for FPS setting between about 150 and 550 fps (greengas, 0.20gr BBs)
Comes with 6 mags (STANAG style). 3 of which throughout the years have had leaks repaired. All 6 of them are leakfree now.
Also comes with an optional shorter CQB barrel (see picture).

Realistic gun: full metal, heavy blowback and ofcourse it boltlocks on empty mags. The paint of the gun and mags have been weathered at the edges to make it look more used and realistic.