Mossberg 590S Shockwave | 12 Gauge | 18.5 in | 51600

The Mossberg 590S Shockwave is a compact, pump-action 12 Gauge built around an 18.5-inch barrel and a Raptor-style birdshead grip. It is short-shell compatible and designed to cycle 1.75″, 2.75″ and 3″ shotshells, providing flexible loading options. The model ships with a fixed cylinder choke and a corn-cob style forend with strap for a utilitarian, no-nonsense interface.

Product Specifications

• The manufacturer part number is 51600.
• The model is 590S Shockwave.
• The gauge is 12 Gauge.
• The barrel measures 18.5 inches.
• The chamber accepts up to 3 inches shells and cycles 1.75″, 2.75″ and 3″ lengths.
• The choke is a fixed cylinder bore.
• The action is pump-action.
• The stock and grip are a black synthetic Raptor birdshead grip.
• The forend is a corn-cob style forend with strap.
• The barrel finish is matte blued with a black receiver finish.
• The sighting system is a front bead.
• The safety is a top-mounted ambidextrous tang safety.
• The magazine type is a tubular fixed magazine.
• The overall finish type is matte.
• The country of origin is the United States.
• The UPC is 015813516006.

The 590S Shockwave emphasizes compact handling and straightforward function: its short-barrel platform and short-shell compatibility make it well-suited for close-range practical tasks and range patterning where maneuverability and simple, reliable pump operation are priorities. The Raptor grip and corncob forend provide a tactile, utilitarian interface that many shooters prefer for quick handling.

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