LCT RPK74M that's been upgraded + 10 magazines (5 need to be sanded down some to fit properly). Wired to Deans Upgrades are a tight bore, steel rack piston, bucking/nub, ball bearing spring guide, mosfet/new trigger contacts/wiring, metal hop unit, cnc o-ring air nozzle, torque motor, shims, sector delayer, and a sorbo pad to correct AOE