Mechbox from Reciever - Stuck on selector

[Kid]

I'm here bashing away at my Classic Army M15 CQB.

There seems to be a pin that needs to come out, directly across from the safety.

I'm bashing away at this and it isn't giving at all... Is this supposed to come out of the gun, is there some trick to it?

I've taken the motor and stock tube off, upper reciever and mag catch, just this one pin I'm left bashing at.

It has never been taken apart before.
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I had been bashing at it for a half hour, just after I posted I hit it out.

Lesson learned.

If it doesn't work, hit it harder.
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Stuck again
Now I'm stuck on the safety, how do I go about getting that off? Or am I sticking on something else?
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Stupid again, I forgot the grip screws into the mechbox.

I haven't taken a M4 apart yet, I guess it just didn't click that I had to remember that... used to the MP5.
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Back to the original problem, mechbox is wiggly but stuck on the selector.

How do I go about getting it past, or the selector out?

[danny09]

Put the selector to semi than slowly lift the mech box up and at the same time slowly switch it to safe...worked for me CA M15A2