[RemMax]

First put your trigger parts in then slide the m16 carrier in, next hold the DIAS in your finger with the lever pressed and slide it over the rear lug with the paddle over the tail of the M16 carrier Close the upper and install the pin back in and you should be ready to go!
Just be careful that your paddla is over the Carrier when you close it so as not to bind anything up inside the gun.
Shoot safe ang enjoy!!!