I need help with my WE G39C gas blowback airsoft rifle.

[cojo965]

Okay I recently stripped down the rifle for the first time and now I'm having problems like misfeeding and the bolt not locking back, what do I do to fix it.

Edit: MISSFEEDING ISN'T THE PROBLEM!!! THE FIRING PIN CAME OUT!!!

 

[Aitur]

I replied in the one in off-topic, but just in case here's a repost....
For the bolt lock problem, there's a little screw you need to tighten on the trigger assembly.
Have a look at the attached video, the bolt lock is mentioned around 1:40ish.


Not sure about the misfeed, all I can suggest is make sure everything is tightened, aligned and lubricated as recommended in the video.