SOS Airsoft got this video to help you out if you need troubleshooting tips with leaky gas magazines... "If yall want me to do a breakdown build overview on the tk 45 then comment down below and I also did a build on the red king arms pdw that I showing on the channel a few months ago. So if u would like to see that just lmk. And ya have a good rest of your week. There will be more to come."