Firearms

Mossberg 500 Mariner 12 ga 20-inch

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Specifications

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Serial Number Data

Production data from factory records and collector research. Year ranges are approximate for pre-1968 firearms.

Years	Serial Range	Count	Factory	Country	Confidence

Mossberg 500 Mariner in 12 gauge with 20-inch barrel and extended capacity. Marinecote stainless finish. Popular on boats and in coastal environments.

Type: Shotgun

Action: Pump

Caliber: 12 Gauge

Capacity: 7

Year introduced: 1961, USA

Weight: 7.5 oz

Overall length: 39.5"

Status: Active

Intended use: Marine/Coastal Defense