Mossberg 990 Aftershock 12 Gauge 18.5 Inch Shotgun

Description

We stock the Mossberg 990 Aftershock as a compact semi-automatic shotgun for a home-defense application. It is chambered in 12 gauge and uses an 18.5 inch matte blued barrel with a fiber optic front sight. The black synthetic grip and strapped forend provide the stated control features, while the forend includes M-LOK (Modular Lock accessory mounting) slots.

Key Specifications

• The shotgun is chambered in 12 gauge for use with compatible shotgun ammunition.
• Its action type is semi-automatic, providing a self-loading operating system.
• The barrel measures 18.5 inches for a compact shotgun configuration.
• The barrel has a matte blued finish for the specified exterior treatment.
• The shotgun uses a cylinder bore choke configuration.
• A fiber optic front sight provides the listed sighting arrangement.
• The stock material is black synthetic, with a pistol-grip-only stock style.
• The forend includes M-LOK mounting slots on the sides and bottom for accessory attachment.
• The shotgun is configured as ambidextrous, including an ambidextrous safety.
• The package includes one 5-round magazine.

The enlarged and beveled loading port is a practical design detail for handling shells during loading. Mossberg also specifies a knurled charging handle, an oversized ergonomic safety, and an enlarged bolt release on this configuration. The AfterShock grip is black synthetic, and the strapped forend adds a defined hand-contact point. We would point this model toward shoppers seeking a compact 12 gauge with a semi-automatic action and a straightforward accessory-mounting interface. The Mossberg 990 Aftershock remains the focus.