Date code stamped on the barrel.
Details on the manufacturing date link on the Remington Society of America
The Model 1100 has been made since 1963 and is still in Remington's catalog.
Go to Remington.com
Remington made the model 1100. 200-400 USD.
it depends on the year of the Remington 1100
year 1974 found out from remington from a post on this site thanks rwb 71942@hotmail ,com
175286V
L939713v
Check the date code on the Remington Society of America, details here: http://remingtonsociety.com/rsa/questions/barrelcodes
1978
Contact Remington Arms at 1 800-243-9700. Follow the prompts and toward the end they have a selection for firearm mfr dates. You will then speak to an actual person who will assist you
Serial numbers by year for the 870 Remington Model.
There's a date code stamped on the barrel. See related links for information on the Remington Society of America.