Quote Originally Posted by georgeib View Post
Is it possible for the top rail to be installed backwards?
No, the top rail can only go on one way from the factory due to the screw hole placements and the cut out for what looks like a barrel nut type of thing (not the right term but for the point of conversation). The receiver rail where u mount the optic base is about 0.5mm higher than the rail on the handguard though. Not sure if its supposed to be flush but it is very slightly higher.