The Mossberg 990 AfterShock SPX is a compact 12 gauge semi-automatic shotgun designed for close-quarters utility and accessory flexibility. It pairs an AfterShock recoil-mitigating grip with a short, maneuverable profile and an optic-ready receiver. The design incorporates modern control ergonomics and multiple M-LOK mounting options for configuring lights, slings, or other accessories.
Key Specifications
- The gauge is 12 Gauge.
- The action is semi-automatic.
- Receiver is optic-ready (Shield RMSc footprint).
- Includes 3 adapter plates for RMR, Docter and Leupold footprints.
- Equipped with an AfterShock grip to help manage recoil and improve control.
- The forend features an integrated heat shield plus multiple M-LOK slots and QD ports for accessories.
- Features a magazine tube extension with M-LOK mounting slots for customization.
- Integrated front fiber optic sight with low-profile protective wings.
- Enhanced controls include a knurled charging handle, oversized safety and bolt release, and an enlarged, beveled loading port for smoother reloads.
- Built with a durable gas system and corrosion-resistant internal finishes.
Purpose-built for shooters who value compact handling and modern accessory options, the 990 AfterShock SPX combines refined ergonomics with an accessory-ready platform. Its feature set supports a range of compact roles where control, optics integration, and modularity matter.
Product information is supplied by the manufacturer and/or distributor and may be automatically formatted or enhanced using AI for clarity and consistency. While we strive for accuracy, specifications, features, and included items may change without notice. Always verify details using the manufacturer’s official documentation and the information shown on this product page before purchase or use.
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