Upgrading the Stag Arms 2T
First pic is pre-upgrade
remove the lower receiver, bolt, and charging handle
remove quad rail hand guards
remove the flash hider
this was the tough part. Using various sized punches and a hammer I drove out the pins that stake the gas block to the barrel, and the roll pin that pins the gas tube into the gas block. Once all those were out I could remove the gas tube, and then twist the block back and forth with a lot of,torque and slowly work it off the barrel.
here you can see the gas port on top of the barrel.
putting the new parts in place was a lot easier. Just need to make sure that all the holes line up and the gas block is oriented perfectly with the upper receiver
then reassemble the quad rail
attach and time the Apollo muzzle brake
attach the flip-up iron sights
take a cool pic