Mossberg 835 older slug barrel rear sight help

[Enfielder]

I am having a dickens of a time finding anything that would replace my broken rear sight. I bought the barrel used years ago and it doesn’t match the current design. Anyone got any ideas as to where I can get a replacement? Here’s the pics of the carnage. The front sight is soldered on.
I’m thinking it’s relatively old.

 

[illinoisburt]

Getting an original will take some searching. Should be standard 3/8 dovetail if exact replacement isn't required. https://www.gunpartscorp.com/products/154990H

 

[Enfielder]

Getting an original will take some searching. Should be standard 3/8 dovetail if exact replacement isn't required. https://www.gunpartscorp.com/products/154990H

Thank you, much!!!

 

[EMC45]

Looks almost like a 10-22 sight would work....

 

[earlthegoat2]

Looks real similar to this one.

https://www.midwayusa.com/product/100586575?pid=516164

or

https://www.midwayusa.com/product/1005882667?pid=365177

Of it is not exact, take some measurements of the dovetail and sight height to find the right one.

 

[BBBBill]

The dovetail base is common to many rifle sights. The blade height is the critical part here.