Firearms

Mossberg Mossberg 590 Shockwave 20 ga 14-inch

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Specifications

About

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 590 Shockwave in 20 ga offers the same NFA-exempt pistol-grip shotgun format as the 12 ga with significantly reduced recoil, making it more approachable for smaller-stature shooters.

Type: Shotgun

Action: Pump

Caliber: 20 ga

Capacity: 5

Year introduced: 2017, USA

Weight: 56 oz

Overall length: 26.4"

Status: Active

Intended use: Home Defense, Compact