Has anyone found a tritium front sight for the DX front blade?

I have been using one for over a decade now.
I think I bought it from SDM. It needs to go to Trijicon to get re-lamped.

I use it with the Meprolight Tritium rear sight blade.

I would love to get my hands on a XS Bigdot.

The whole thing started with needing to chase some coyotes off the property tonight and wishing I had a night sight to help acquire a better picture.