Mossberg 990 AfterShock | 12ga | 18.5″ Barrel | 83002

The Mossberg 990 AfterShock is a compact 12 Gauge semi-automatic shotgun built around a short 18.5-inch barrel and a synthetic AfterShock pistol grip. Its design emphasizes maneuverability and modular accessory mounting via an M-LOK–equipped forend, with a front fiber-optic sight for quick target acquisition. The platform uses a gas system with corrosion-resistant internal finishes intended to promote reliable cycling and reduced maintenance.

Product Specifications

• The manufacturer is Mossberg.
• The model is 990 AfterShock.
• The gauge is 12 Gauge.
• The action type is Semi-Automatic.
• The barrel measures 18.5 inches for compact handling.
• The barrel material is chrome-lined steel.
• The barrel finish is matte blued.
• The stock is black synthetic with an AfterShock pistol grip.
• The forend includes M-LOK mounting slots on the sides and bottom for accessories.
• The sights are front fiber optic for fast sight picture in varied light.
• The safety is ambidextrous.
• The magazine type is tubular.
• The choke type included is cylinder bore.
• The UPC is 015813830027.

Compact and feature-oriented, the 990 AfterShock offers a short-barrel platform with user-focused ergonomics and accessory flexibility. Its corrosion-resistant internal finishes and gas system are intended to support consistent function with minimal maintenance. For shooters who prioritize maneuverability and modularity, this model pairs a compact footprint with toolbox-style adaptability through M-LOK mounting and a grippy AfterShock pistol grip.

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