Finn 91/30 front sight elevation

[jmoore]

Finn 91/30s with the blade front sight came with a small block under the front sight proper to get it high enough. "Dual dovetailed" is a common descriptor. If you can't find photos, I may have one to illustrate, but maybe not... I can't remember!

At any rate, you could fashion such a thing for your purposes. If you've lots of time and a steady hand, it could be done with a hacksaw and some files. Quicker and easier to mill one, but it's not required.