CO2 powered A&K SR25

Mancraft PDIK V2.5 internals, CO2 regulator and capsule holder attached to stock. 
Prowin hop unit, PDI w-hold bucking and PDI 450mm 6.03 inner barrel. Key mod rail, Harris bipod, 3-9x50 scope with extended sunshade and flip covers, big dragon NATO suppressor. Comes with approx 9 150rd mags and double mag pouches, 100 CO2 bulbs. 
 Also contains all original components: Barrel assembly, stock, scope, gearbox etc for if you wanted to change it back to the A&K AEG.

Never been skirmished, open to offers. Cost about £800 to build, would like to get as close to £400 as possible.

I had built it during my undergraduate degree, but ended up not having time to skirmish it, now I’m trying to fund my masters degree and need to sell it ASAP.