$130-$150 in good condition, great gun
You will have to contact Mossberg
The value of a Mossberg New Haven bolt-action 12 gauge shotgun actually depends on a couple things. Most important would be the condition of the shotgun.
The value of a Mossberg New Haven model 495 12 gauge shotgun with a 28-inch barrel typically ranges from $200 to $400, depending on its condition and any additional features or accessories. Factors such as age, wear, and local demand can also influence the price. For a more accurate appraisal, consider checking recent sales or listings in your area.
The value of a Mossberg Model 500e 410 gauge shotgun overages between $200 and 300. The actual value of the shotgun is largely determined by its overall condition.
50-160 USD
$300-$450 depending on the condition. Based on a Mossberg 500 and manuf in 1973
$250
255.00
Yes, it is. The 600AT was simply sold under the New Haven name instead of the Mossberg brand. It's a Mossberg 500A (12 gauge) intended for targets and hunting (long barrel and great wood). All Mossberg 500 parts fit it.
I'm sure it has sentimental value to you, but I cannot see it to assess its value.
50-150 USD
75-200 USD