Check date code details link - Remington Society of America
Serial 718943w
The Remington Wingmaster with the serial number 2039814 was manufactured in 1980. Remington's serial number system can help date their shotguns, and this particular number falls within the range indicating production during that year.
Do a search on barrel codes, I believe that will give you an answer
In 1950 Remington introduced fifteen versions of the Model 870 shotgun, in 12, 16 and 20 gauges.
The Remington 870 Wingmaster with a serial number starting with "194673V" was manufactured in 1971. The serial number indicates the year of production, as Remington used a specific format for their serial numbers during that time. If you need more precise details about its features or specifications, consulting a Remington firearms expert or reference guide could be helpful.
Check the Remington Society of America, date barrel codes and location. http://remingtonsociety.com/rsa/questions/barrelcodes
From the date code stamped on the barrel. Look for the manufactured date link on the Remington Society of America for details.
http://remingtonsociety.com/rsa/questions/barrelcodes
See related link.
go to Remington web site they can help you as they did with my 870 wingmaster
Go to the Remington Society of America and click the Manufactured link, it has the location and barrel codes for month/year of manufacture.
Check this table for the answer: http://www.remingtonsociety.com/rsa/questions/barrelcodes