Mossberg 990 SPX Aftershock 12ga 14.75″ 5+1 FDE

Key Specifications

• Make and model: Mossberg 990 SPX Aftershock.
• Gauge: 12 Gauge.
• Action type: Semi-Auto.
• Chamber: 3" capacity.
• Barrel description: Integrated heat shield.
• Finish: metal Cerakote (Flat Dark Earth).
• Sights: Fiber optic front with low-profile protective wings.
• Optic-ready: receiver accepts Shield RMSc footprint and includes adapter plates.
• Choke system: Accu-Choke with cylinder-bore tube included.
• Magazine type: Tubular.

The 990 SPX Aftershock is an ultra-compact semi-automatic 12 gauge built for close-quarters handling and accessory adaptability. It pairs Mossberg's AfterShock grip and an integrated heat-shield barrel with an optic-ready receiver and corrosion-resistant internal finishes to support routine use in demanding conditions.

Its compact layout, optic-ready top rail and M-LOK-capable forend allow straightforward customization for a range of defensive and home-protection configurations without sacrificing controllability. The combination of the AfterShock grip, fiber-optic sighting and Accu-Choke system makes this platform practical for users who prioritize compact handling and modularity.