G&G Combat Machine ARP 556 AIRSOFT RIFLE. Complete custom built ARP 556 airsoft gun with Polarstar F2 engine, Maxx hop up unit, new inner barrel, new outer barrel, new gears, new speed trigger mounted riser for optic site, new stock, and more! Four black PTS mags and three tiffany blue PTS mags included! Taking serious inquiries only, thank you! Tank and regulator additional- $150