Firearms

Mossberg 590 Shockwave 20 Gauge 14-inch

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Specifications

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Notable Variants

Aftermarket Ecosystem

Historically Significant Examples

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

The Mossberg 590 Shockwave in 20 gauge provides the same non-NFA classification and compact configuration as the 12 gauge Shockwave with reduced recoil, making it more manageable for shooters who find the 12 gauge Shockwave difficult to control.

Type: Shotgun

Action: Pump-Action

Caliber: 20 Gauge

Capacity: 5

Year introduced: 2019, USA

Weight: 4.75 oz

Overall length: 26.37"

Status: Active

Intended use: Home Defense/Novelty