How did you end up getting the front sight base off?
I tried mine tonight... got the 4 screws that hold the sight hood on... then took off the sight blade and screw... then tapped the pin out of the base...
Now it's stuck... I tried tapping (hammering) the front sight base off using a block of wood as a punch... but that thing is not budging... any thoughts?
EB
Tap it back to the original position and apply a little heat to the block while standing the muzzle in 1/2" of ice water to 'shrink' it a little. (Four hands would help)
Remove from heat and water at the same time and try again with the mallet.