Omani barrel.

[kahnjar1]

The other thing about Omani barrels, is that they are all of the same intricate design, and not just a plain tube with minimal decoration as seen on most other "ethnic" long guns.
Ibrahiim has posted pics in the past of many barrels which he has, and these are all of the same design as those featured here.
As Richard observes, why mount a beautiful barrel on a relatively plain stock?
Stu