Baikal shotguns have been around in the UK for a long time now. They are very simple and honest hardworking guns that will give many years of service. I own two Baikal shotguns (both singles) and I often choose them intead of my Beretta 391 semiauto. Prices in the UK for new baikal guns are about: single all guages L89 side by side L260 over/under L340
You can go to Baikal's website at www.baikalinc.ru. Be sure to click English version when the page pops up unless you can read Russian! Has lots of information and you can even contact the company via email.
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Made in Russiahttp://www.baikalcanada.com/home.htm
Remington now imports the Baikal shotguns under their 'Spartan' brand. Barrels for the "Remington" Spartan SPR-453 are the same as your Baikal.
Parts for these shotguns are hard to find. EAA Corp carries parts for Baikal shotguns. A good gunsmith might also be able to help make some parts.
On the internet.
http://www.trulockchokes.com/cgi-bin/eShop/index.cgi
You can find information about Russell Arms Co. shotguns online at places like Gun Trader or at many local gun stores. You can also find information online at Shotgun World or Arms List.
IZ shotguns, also the Baikal brand use the TruChoke system sold also by Colonial Arms. This is the same choke style used by the Remington Spartan line while Remington owned the rights to the Baikal design.
probably not, historicly shotguns are smoothbore if you shoot a slug, THAT would be rifled.
Try the Blue Book of Gun Values
Where can I find the diagram of a Baikal MP 153