Sig 226 flashlight mount without accesory rails?

[alpha6164]

I have an older early 90's Sig 226 without the light rail but wanted to mount a flash light to it. What are the options available? I have tried to search but it seems most attach using rails that come with the newer ones. All input appreciated.

 

[ROCK6]

I'm using one from TDI which as been working just fine...

SIG P226 RAIL

ROCK6