Keman is a high grade shotgun made in Spain. It is similar in many ways
to a Perazzi but is not a Perazzi.

 

Kemen is an almost direct copy of Perazzi MX-8 with some different dimensions, most parts are not interchangeable.
However, Kemen did made some barrels for Perazzi owners, the most noticeable are their "Universal monobloc" Perazzi barrels, that will fit both square and round monobloc.

Kemen claims they're better made.

 

Sorry for the confusion; it is a Kemen over/under, Devault conversion. Dennis Devault converted about 20 to an adjustable rib and custom stock. The Perazzi part is that the single barrel is a Perazzi barrel that was added to make it a combo gun. The single barrel has a delrin rib added to make the sight picture the same as the over/under barrel.