It’s gas powered, need a high end regulator to work properly. -No, I don’t have a stock for it -Internals are fine -No I will not part the gun Comes with 2500rd HPA tapped drum Zenitco B-11 handguard Zenitco RP-1 charging handle Zenitco PK-3 motor grip Zenitco DTK-1 muzzle brake Will trade for LCT PP-19 Vityaz