MOSSBERG 990 AfterShock SPX | 12 Gauge | MFG# 83010

The Mossberg 990 AfterShock SPX is a compact semi-automatic 12 gauge shotgun built around an optic-ready SPX receiver and an aggressive AfterShock grip. It pairs corrosion-resistant internal finishes with a matte blued metal surface and a synthetic black furniture package. The design prioritizes close-quarters handling and accessory adaptability while retaining a gas-operated action.

Product Specifications

• The action is Semi-Auto.
• The gauge is listed as 12 Gauge.
• The chamber size is 3″.
• The choke type is reported as Cylinder.
• The finish is described as Matte Blued.
• The stock/color is identified as Black.
• The model is 990.
• Includes an optic-ready receiver with Shield RMSc footprint and adapter plates for RMR/Docter/Leupold footprints.
• The forend features an integrated heat shield and multiple M-LOK accessory slots plus QD ports.
• Equipped with an AfterShock grip intended to reduce felt recoil.
• The forend/ magazine tube includes a magazine tube extension with M-LOK mounting slots for accessories.
• Factory sights include a Fiber Optic front sight with protective wings.
• The reported weight is 6.06.
• Manufacturer part number is 83010.
• The UPC is 015813830102.

The 990 AfterShock SPX is tailored for operators and competitors who value compact, accessory-friendly shotguns. Its optic-ready top, M-LOK-ready forend and user-focused controls make it well suited for tactical sporting events and short-range patterning and training sessions. The combination of a gas system tuned for reliability and enlarged ergonomics supports fast reloads and follow-up shots.

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