What does the r mean on your mossberg 500 serial number?

The "R" in a Mossberg 500 serial number typically indicates that the shotgun is part of a specific production run or model variation. Mossberg uses various letters and numbers in their serial numbers to denote features, manufacturing dates, or production locations. To get precise details about what the "R" signifies for a specific firearm, it's best to consult Mossberg's customer service or reference materials related to their production codes.