Selling my ARP9 with Polarstar Jack HPA engine, fully set up and field-ready. Everything works great and has been well taken care of. Package Includes: • ARP9 w/ Polarstar Jack installed • 7x Classic Army Midcap Magazines • High-Cap Drum Mag • FCU (Fire Control Unit) • HK Army 3000 psi HPA Tank with Amped Airsoft SLP Regulator & Line • Acetic Gear SMG Mag Pouch I will also include the magpul foregrip, rail guards, and T1 sight This setup is perfect for both CQB and outdoor play—reliable, efficient, and consistent. Only trades are for music stuff / Guitars