Mossberg 990 AfterShock SPX 12 Gauge 3″ Chamber

The Mossberg 990 AfterShock SPX is a compact, semi-automatic 12 gauge platform built for close-quarters utility and easy handling. It is configured with a 3" chamber and an AfterShock grip to reduce perceived recoil. The SPX design is optic-ready and incorporates modern accessory mounting on the forend for modular use in a variety of roles.

Key Specifications

• The gauge is 12 Gauge.
• The action is Semi-Auto.
• The chamber accepts 3" shells.
• The model designation is 990.
• The metal finish is Matte Blued.
• The external color is Black.
• The equipped sight is a Fiber Optic front sight.
• The included choke type is Cylinder.
• The SPX configuration is Optic-Ready (Shield RMSc footprint).
• The forend features M-LOK accessory slots with an integrated heat shield.

Practical and purpose-driven, the 990 AfterShock SPX blends compact handling with modern accessory compatibility for close-range and confined-space applications. Its optic-ready top, M-LOK-capable forend and AfterShock ergonomics deliver a straightforward setup for users who prioritize maneuverability and modularity in a reliable semi-automatic platform.