Front sight stuck

[Claytom Magnet]

Anyone have any tips? Trying to remove the front sight on my P320 and I've used a brass punch, steel punch, heat, threw it in the freezer, pb blast and still won't budge but I got a nice ding in the dovetail and yes I'm going the right way. Starting to think about cutting it out but don't really want to do that.

 

[MRP]

might have to make a press set up to fit in a vice.
option 2. cut it slowly and carefully as low as you can to barrel with a hacksaw blade or new file should tap out easily then.

 

[GSG1911]

Seems like Sig hired the Kimber sight guy to smash them in.

Sight pusher tool would be your best bet. Otherwise file down one side of a brass or steel punch to get a flat base. That will significantly improve your contact and keep the punch from rolling.