Either way, when you call Remington, which is the EASIEST and fastest way to date your firearm, they'll ask you for the serial number. If there's no serial number on the receiver (opposite side of the shell ejection port) then the firearm was manufactured before the mid-60's, which was when serial numbers started being required. If I were you, my first step would be to ignore the barrel for now and instead look on the receiver for the serial number. I'm not sure what the LE means, my first thought would be Law Enforcement.especially if it's a 12 gauge with a shorter 21' or less barrel. IMP would be improved, MOD would be modified, FUL would be full, etc. First, the 'CYL' closer to the muzzle indicates that the barrel has a Cylinder fixed choke.
