Rail for WE M92 series?

[Khaos]

Hi there,

Since buying my WE M92 I have wanted to stick a rail on it as I didn't get the M9A1 which had one built on. I have been searching around but there are no confirmed sources of what make the WE M92 should use. So I come here in hopes of someone having owned/owns a WE M92 and what rail adaptor (just under-rail for flashlights not sight rail) should I buy?

I've bought two killflashes in the past for two different sights sights which I thought would fit properly but due to make caused them to no fit so this time I want to check before spending money on a part that does not fit. (Also if anyone knows a properly killflash that screws into the WE Specter Elcan that would also be extremely helpful!)