The barrel code stamp will tell you, see related links.
Go to Remington.com
it depends on the year of the Remington 1100
The Model 1100 has been made since 1963 and is still in Remington's catalog.
175286V
L939713v
what is the value of the Remington 1100
No such model in the Winchester line. Remington has the 1100
The 1100 designation for a Remington shotgun is the model number. Remington makes the 1100 model in a trap version and a field version.
1978
NO
Yes, it is heavier and longer
Remington made the model 1100. 200-400 USD.