DTP SR 15 receiver
 

How do I take it apart... took out 2 pins, still won't come apart no matter what I try O.o

What kinda metal body is it? Tabless?

Tried sliding the upper forwards off the lower?

nvm it's got tabs and a 1 piece hopup.
I got it off by taking the top receiver with the mechbox attached off the lower receiver after removing all the pins, grip, mag catch, and ect.

Now to figure out its threading.