870 police stock

[drobud71]

Hello every one.
It is my first time on this forum.
I'm canadian and I don't speak english very well.
But I'm a Remington 870 collector.
I found this picture on Internet. It is a 870 Police magnum.
My question is about the stock. When does this stock was sell and does it have a particular name?
It try to find one because in the 90' I was working for Loomis Armored car, and your shotgun have this kind of stock.

Thank you very much for your help

Remington_870P_Police_Magnum.jpg (138.2 KiB) Viewed 1852 times

[Synchronizor]

It's an older Choate stock design. They actually still sell it; here's the page on their website.

I believe that fore-end is a Choate piece as well.