removing acro sight from trooperIII

[daurizio]

I would like to replace the rear sight on my trooper,can anyone tell me what size punch is used and which way does it tap out.also pin size.thank

[A1A]

Same sight, same pin. Rear sight removal on Colt Python

[dfariswheel]

Comes out from either side, but the gun industry has a "most of the time" standard of pins and sights coming out from left to right.

I wasn't joking about IMMEDIATELY wrapping tape around the leaf portion of the sight to retain the elevation screw retaining pin.
If that pin slips out, the elevation screw comes out and those microscopic balls and spring are GONE.