Best way to remove M&P Shield rear sight

[yyr2288]

I am trying to remove the screw on the rear sight of M&P Shield. Obviously I cannot just unscrew because it's sealed using red locktite. I googled as much as I can and everyone said to heat it up to about 550 F. I don't have any tool that can help me heat up the screw to that temperature except for throw it into the oven.

Has anyone done it at home? how did you unscrew the rear sight? Anyone knows a decent (not overpriced) smith that can do this nearby Atlanta?

Any help is highly appreciated.

 

[bass222000]

Just hold a cigarette lighter to it for a second. Thats what I did and it came off. Just takes a little pressure to "break".