well don't own one--BUT-- typically If a sight is set in a dove tail and no set screw (which by the way is the proper way) for a sight to be installed,
that requires actually someone fitting the sight to the dove tail as opposed of making a big dove tail and assuming a set screw will hold it in place.
anyway a sight pusher is used to move the sight side to side, and of course the usual red neck way we do here in the south is to put the weapon in a vice and use a brass drift and pop it with hammer a few times.

 

For the front sight you need a metric size....M 1.3 allen wrench. You probably know the rear already, BJIC......it's also metric, size M 2