G&P Receivers Wont Slide Apart
 

I've watched multiple videos on how to take apart G&P M4s, however even after removing both body pins, it still own't slide apart. Am I missing something that I never noticed being done in a video? Or is it stuck on something? It's also just a standard M4A1 with a colt metal body if that makes a difference, and it's wired to the rear.

Edit: Fixed, after the screw that's the front pin comes out, it turns out that the fake pin it's in must also come out, and I never new this and thought it was only the screw holding the 2 halves together.

sometimes the charging handle or/and the bolt carrier plate cover will catch on the mechbox. For the charging handle lightly pull while trying to seperate the upper half and make sure the plate is not hiting on anything...