Mossberg 990 SPX AfterShock 12 Ga 18.5in Blued/Black

About this product

The Mossberg 990 SPX AfterShock is a compact, semi-automatic 12-gauge shotgun engineered for close-quarters handling and tactical utility. It features an 18.5-inch barrel and a range of user-focused upgrades including an Optic-Ready top footprint and an aggressive AfterShock grip. The design emphasizes maneuverability and accessory modularity while retaining a durable gas system and corrosion-resistant internal finishes. This model ships with multiple adapter plates for common red-dot footprints and an upgraded forend with M-LOK slots for customization.

Key Specifications

• The manufacturer is Mossberg.
• The model is the 990 SPX AfterShock.
• The gauge is 12 Gauge.
• The barrel measures 18.5 inches for compact handling.
• The chamber is 3″ as listed in the provided product information.
• The finish is listed as Blued/Black.
• The receiver is optic-ready (Shield RMSc footprint) and includes additional adapter plates.
• The stock features an AfterShock grip designed to reduce perceived recoil.
• The forend includes a magazine tube extension with M-LOK mounting slots for accessories.
• The sighting system includes a front fiber optic sight with protective wings.

With compact dimensions and a suite of practical tactical features, the 990 SPX AfterShock is built to perform in close-range, high-mobility scenarios while offering straightforward options for optics and accessory mounting. Its combination of an optic-ready receiver, durable gas system, and modular M-LOK forend gives owners a flexible platform suitable for a range of responsible sporting and defensive applications.