Just wondering if anyone with a CS45 would know if one of the Blackhawk Serpa holsters would fit it?

Fobus has a holster (SG21LH) that they list for several S&W's - CS45 being one of them.

Blackhawk lists their Serpa for S&W 5900 series: #413510BK-R

and their Serpa for S&W 4000 series: #413510BK-R-1

I wonder since Fobus for the CS45 fits these same S&W models if one of those Serpa's would fit it too.....

Sure would be nice if I had those somewhere to try without having to buy them first to see.

Thanks in advance.