G&G 1500rd Drum Magazine for ARP9 Shape_Small-Type It even weighs more than

It even weighs more than the full metal KWC model

Built-in reverse polarity and short-circuit protection

Full semi-automatic blowback operation

however this was time consuming and hard to get right

G&G 1500rd Drum Magazine for ARP9 Shape_Small-Type It even weighs more thanIncredibly robust design with a f ull polymer external construction. Very easy to strip and re build should you ever need to. BB filling window locks in place preventing any accidental spillages while running about. Designed specifically for the G&G ARP 9 and satisfyingly locks the magwell. Clearly marked front dial identifying which way to turn to feed BB's. Winding required.