BK9 sheath for other similar sized blades?

[beestokk]

Hi all - debated whether to put this here or the Sheaths subforum but this seemed more applicable for the question.

Curious if anyone knows if the Becker BK9 stock nylon sheath will fit a Tops Tahoma Field Knife or a Becker BK1 Brute?

I know the BK4 sheath will fit the BK1 snuggly, and from what I've been told it will also similarly fit the Tahoma Field Knife. Wondering if the BK9 sheath will work as well.

Thanks all!