A2 front sight for pencil barrel

[bushmaster06]

I have a Bushmaster pencil barrel that came with a shaved A2 front sight block and would like to try to find an intact front sight block. My hope is that someone has a take-off in their stash that's already drilled for taper pins. I'm cheap and dont want to pay to have one installed with a virgin FSB.

 

[mouthpiece]

Lmk if you don't find something local and I can dig through my stash. I know several are already set scre drilled/tapped.
What ID? I am guessing .750
Problem is, most tapir, taper wateverthefk pin holes don't always match alignment. You Usually end up having to do set screw with drilled dimples, in my experience.