Best way to remove a horribly stuck roll pin?

[charlie-6]

roll pin loose

Hi all
Purchase a 1911 ed brown went threw 250 rds. while cleaning the gun notice the roll pin in the front sight had come up a small bit. use a small hammer with tape on top of sight and move it back in without scaring the sight. my question what color loc-tite to put on top of the small pin. cost too much to send back to brown. hopeing it will not pop back up when i shoot again.
thanks for some info.

 

[brickeyee]

what color loc-tite to put on top of the small pin

The wicking stuff designed for getting into assembled joints.

A drop of super glue often works as well.