Original Bisley flat top. Looks to be a version of the same front sight and a flat "target crown". One of the members here picked up a Bisley that looks very much like Keith's #3 that was done by the Colt factory. Sure makes me curious about the gun I posted.
Hard to tell from the photos, but how much lower is it than a standard front sight ? It sure looks like it would make the gun shoot high but maybe it is regulated for 50 yards or something. Nice work regardless.
Many 32-20 guns have had the front sight filed down. This one has been discussed in a different thread. I would not think that is a factory sight Some have even said the muzzle crown looks off. The rest of the gun looks very good but that sight ruins the entire gun for me and a lot of others. The gun is in extremely nice condition for a 1902 pistol. It looks to be all original. Even the blue on the barrel looks right but with that sight it will forever be in question. The gun does not letter with a modified sight and has no mark on the trigger guard indicating Colt had it back. If I owned the gun I would look into having the sight replaced by one of the experts such as Lanara.