Mossberg 990 AfterShock SPX | 12 Gauge | 18.5in | 83013

The Mossberg 990 AfterShock SPX is an ultra-compact 12 Gauge semi-automatic platform built for controlled handling and accessory adaptability. It pairs an 18.5-inch barrel with an optic-ready, drilled-and-tapped receiver and an integrated heat shield for sustained use. The forend includes multiple M-LOK slots and QD ports for modular accessory mounting. Ergonomic controls and an AfterShock grip are designed to aid handling during extended sessions at the range or in tactical training.

Product Specifications

• The action type is Semi-Auto.
• The gauge is 12 Gauge.
• The barrel measures 18.5 inches.
• The chamber size is 3 inches.
• The choke installed is Cylinder Bore.
• The stock type is Folding.
• The sights include a Fiber Optic front sight.
• The receiver is Drilled & Tapped for optics.
• The mount footprint is Shield RMSc for compatible plates.
• The barrel features an integrated heat shield.
• The barrel material is Steel.
• The overall length is 30.88 inches.
• The unloaded weight is 6.29 lbs.
• The grip material is Black Polymer.
• The UPC is 015813830133.

Compact, adaptable, and purpose-built, the 990 AfterShock SPX is suited to shooters who want a maneuverable semi-automatic platform with modern accessory options. Its optic-ready receiver, M-LOK forend, and enlarged controls make it practical for range practice and tactical training scenarios where quick handling and modularity matter.