Re: front sight removal
Front sights are held on, to my knowledge, one of three different ways.
Dovetailed. You say you got that one figured out.
Screwed. The barrel is drilled and tapped, and there are little screws at the front and back of the sight ramp, and it's just screwed down.
Silver solder. The way to remove this one is to heat it until the solder melts.
Meddle not in the affairs of dragons, for thou art crunchy, and taste good with catsup - George of Lod, Year of Our Lord 297
I always take precautions.
Beware the Evil Bullet Fairies.