Heat shield for 12.5" 12 ga barrel ??

[Pre-1898]

Can anyone tell me if there is a place selling Heat shield for 12.5" barrel 12 ga shotgun ?
If so please let me know where.

I would also like to see pictures of some 12.5" bbl with heat shield if any .

Thanks !

 

[EL34/6L6]

Tough find in factory designation.

I have seen a photo of a black and silver pump wearing a top folder that had a very short heatsheild covering it's equally short barrel. It Looked OEM to me. I'll have to search the image...