The Remington 1100 autoloading shotgun was introduced in 1963 and has been in production for over forty years.
The Model 1100 is made in 12 gauge, 16 gauge, 20 gauge, and .410 bore.
Articles on the Remington 1100
Remington 1100 competition master – Out of the Box
If there has ever been an all-around champ of shotguns it must be the Remington 1100. It was the first widely successful gas-operated semiautomatic shotgun; heck successful isn’t even close to being superlative enough. Hugely successful is modest praise.