Remington now imports the Baikal shotguns under their 'Spartan' brand. Barrels for the "Remington" Spartan SPR-453 are the same as your Baikal.
Baikal guns are being imported by Remington under the 'Spartan' name.
On the breach under the barel
Go to the Ruger website. Under customer service, you can access their database of year of mmanufacture by model, by serial number.With the serial number that you have supplied,your Ruger Single Six revolver was made in the year 1958.
It comes in two gauges, 20.gauge and 12 gauge Was Russian gun, now gun rights bought and owned by Remington. Now sells under Remington as Remington Spartan. Still sold under Baikal name.
Check the frame, barrel, butt and under the grips
£475 English pounds from York Guns
I am a gun dealer in Asheboro, NC (Franks gun and pawn). Yes, the Baikal choke tubes will fit. This gun is made by Baikal for Remington. It used to be imported under the EAA name. You can also get tubes at Colonial choke tubes.
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.
Ruger has info on their website. Look under Customer Service, then Historical Data.