If the sight came with an extra replacement rod you might be able to melt into a bigger dot when fitting it.
Polish it a bit before you install so as much of the light will pass thru as possible. May or may not work in all cases.
In Memory of Paul "Dietrich" Stines.
Dad: Say something nice to your cousin Shirley
Dietrich: For a fat girl you sure don't sweat much.
Cue sound of Head slap.
RIP Muggsy & TMan
"If you are a warrior legally authorized to carry a weapon and you step outside without that weapon, then you become a sheep, pretending that JOCKO will not come today."