The Mossberg 990 Aftershock SPX in 12 gauge and OD Green Cerakote (brand part no. 83012) is an ultra-compact semi-automatic shotgun built around a 14.75-inch barrel with an integrated heat shield and a 3-inch chamber, purpose-built for security use. Mossberg equips the Aftershock SPX with an optics-ready Shield RMSc footprint (plus three additional adapter plates for RMR, Docter, and Leupold-pattern optics) and an Accu-Choke system with a Cylinder Bore choke installed. Among shotguns in the semi-auto shotguns category, this Aftershock SPX favors shooters who want a compact, optic-ready platform in a distinct OD Green finish.

Key Specifications

• Chambered in 12 gauge with a 3-inch chamber.
• Features a 14.75-inch barrel with an integrated heat shield.
• Feeds from a magazine with a 5+1 capacity.
• Finished in OD Green Cerakote.
• Optics-ready with a Shield RMSc footprint, plus three additional adapter plates included.
• Ships with an Accu-Choke Cylinder Bore choke pre-installed.
• Sighted with a winged front fiber-optic sight.
• Built with the AfterShock grip for a firm hold and reduced felt recoil.
• Overall length is 27.125 inches.
• Weighs approximately 6.04 pounds.

Frequently Asked Questions

Is this shotgun ready for a red dot optic? Yes, it uses a Shield RMSc footprint and includes three adapter plates for RMR, Docter, and Leupold-pattern optics.

What choke does this shotgun ship with? An Accu-Choke Cylinder Bore choke, pre-installed.

What is this shotgun’s intended use? Mossberg lists it for security use, given its compact size and tactical controls.

Buy the Mossberg 990 Aftershock SPX Shotgun

A compact, optic-ready platform in a distinct OD Green finish is exactly what the Aftershock SPX delivers. As soon as it’s ready to ship, order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.