1911 "Universal Mount" Big White Dot/Tritium Front Sight?

[JM]

Is there a Big Dot/Tritium front sight that has a slot cut into the underside to fit over an existing fixed front sight blade? Place over original sight & perhaps drill through for a roll pin to affix.

I would like to improve the front sight on a Star PD. I don't know if cutting a dovetail into the top of the slide would be wise.

Thanks.