Request for help in identifying front sight base

[djones]

Does anyone recognize what brand of front sight base this is? It’s a ladder sight from a match rifle and I can’t for the life of me remember what brand it is.
Thank you.

 

[1shot]

Maybe a Riles. I seem to have one years ago, but that logo doesn't look right.
I hope this helps,

Lloyd

 

[Bjl4776]

Porter precision products out of lake Jackson, Tx. He doesn’t make them anymore but can still service them. I have his number if you need it

 

[djones]

Thank you very much!

 

[1shot]

Thanks for jogging my memory. That is a Porter.

Lloyd