moved. sorry wrong place to post.
hi guys this is my brothers gun, he haven't used it in a while since september. i dont know what happen to it but, when you put the magazine into it, fire it, instead of making it a full cycle, it will get stuck in the middle and slowly release the gas in the magazine. in order to stop it, i needed to release the magazine. could anyone tell me how to open an WE XDM or link a video of a person opening it. somehow i been trying to open it to lubricate the gun but i dont have any luck of getting the slide out of the frame.

please anyone help me.
thanks
JK