This has been well used and would suit a tinker. Currently runs on a custom high cap mag. Few scraps but still in good condition. It use to run a kit that was able to run aeg mags but have pulled that out. Bolt was modified to allow the air hose past. Have tested on the mag and fires well!
Should run on we gbbr mags if you want to set it back to gbbr.
Custom high cap magazine.
Moe fore grip
Moe pistol grip.