Full Metal uzi, I believe it’s by KWC. Worked great but the charging handle fell off during a game one day. Still worked if you took the top cover off and manually primed it. This is CO2 powered. If you sent me a message about this a few months ago and I didn’t respond I apologize, I suffered a lower back injury and was unable to continue responses at that time. I will try my best to do so now. I’m not interested in trades (I am done with Airsoft) for Airsoft or non Airsoft items. Feel free to message me with questions, let’s work something out.