--- title: "Mossberg 990 SPX 12 Gauge Semi-Auto Shotgun" description: "12 gauge semi-auto shotgun with a 3\" chamber, 5+1 capacity, optic-ready receiver, fiber-optic front sight, Cylinder Bore choke, and FDE Cerakote finish." canonical_url: "https://www.kygunco.com/product/mossberg-m990-spx-12ga-14.375-5rd-fde-aftershock-black" meta: author: KYGUNCO "og:description": "12 gauge semi-auto shotgun with a 3\" chamber, 5+1 capacity, optic-ready receiver, fiber-optic front sight, Cylinder Bore choke, and FDE Cerakote finish." "og:image": "https://cdn.kygunco.com/assets/products/300631/thumbnail.jpg?v=1770736775" "og:image:height": "500" "og:image:width": "500" "og:title": "Mossberg 990 SPX 12 Gauge Semi-Auto Shotgun" --- > Index of every page on this site: [llms.txt](https://www.kygunco.com/llms.txt) [Home](https://www.kygunco.com/) / [Shooting](https://www.kygunco.com/category/shooting) / [Guns](https://www.kygunco.com/category/shooting/guns) / [Shotguns](https://www.kygunco.com/category/shooting/guns/shotguns) / [Pistol Grip Only](https://www.kygunco.com/category/shooting/guns/shotguns/pistol-grip-only) / MSS-83011 ![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/300631/main.jpg?v=1770736775) For illustration purposes only, this image may not be an exact representation of the product. # MOSSBERG M990 SPX 12Ga 14.375" 5rd - FDE/Black The Mossberg 990 AfterShock SPX is a 12 gauge semi-auto shotgun with a 3" chamber, 5+1 capacity, optic-ready receiver, and Cylinder Bore choke. It features an AfterShock grip, fiber-optic front sight, FDE Cerakote barrel and receiver, an integrated heat shield, M-LOK accessory slots, and QD sling ports. Three adapter plates support RMR, Docter, and Leupold-footprint optics. $1,035.99 ** 5 interest-free payments of **$207.20** with ![Sezzle logo](https://www.kygunco.com/brands/sezzle.svg) ** ![Credova logo](https://www.kygunco.com/brands/credova.svg) As low as **$126.92**/month with ![Credova text logo](https://www.kygunco.com/brands/credova-text.svg) ** Online In Store ** Free Shipping Enjoy delivery to the Lower 48 States at no cost. ** Ships To FFL Dealer Handled by our expert shippers in Bardstown, KY. ** Check Local Restrictions Not sure whether this item can be shipped to your area? Enter your ZIP code for a quick check. Item # 300631 Style MSS-83011 UPC 015813830119 Condition New Manufacturer [Mossberg](https://www.kygunco.com/brand/mossberg) Model M990 Round Capacity 5 Caliber 12 Gauge Action Semi-Auto Barrel Length 14.375 in Ultra-compact and highly maneuverable, the 990 AfterShock SPX is built for quick handling and versatile customization. Its optic-ready receiver supports easy mounting of micro-dot sights, while the enlarged, beveled loading port ensures smoother, faster reloads. A magazine-tube extension with M-LOK slots offers flexible accessory placement. Up front, a fiber-optic sight with low-profile protective wings provides bright, protected aiming. The forend adds an integrated heat shield, multiple M-LOK slots, and QD sling ports for expanded capability. The shotgun comes equipped with a Cylinder Bore choke and includes three adapter plates for RMR, Docter, and Leupold-footprint optics. FEATURES - Optic-Ready (Shield RMSc Footprint) - Includes 3 additional adapter plates for mounting RMR, Docter, and Leupold footprint optics - AfterShock grip provides a firm grip and helps minimize felt recoil - New Design forend features an integrated heat shield, multiple M-LOK accessory slots, and QD ports - Cerakote barrel and receiver - Durable gas system and host of corrosion-resistant internal parts/finishing - Enlarged and beveled loading port for ease of reloading - Knurled charging handle; oversized, ergonomic safety and bolt release - Magazine tube extension with M-LOK mounting slots for easy accessory customization - Front Fiber Optic sight equipped with low-profile protective wings SPECIFICATIONS - Gauge: 12 Gauge - Action Type: Semi-Auto - Chamber Size: 3" - Usage: Security - Barrel Type: Integrated Heat Shield - Barrel Length: 14.75" - Barrel Finish: Cerakote – Flat Dark Earth - Choke: Accu-Choke System — Cylinder Bore (installed) - Capacity: 5+1 - Overall Length: 27.125" - Sights: Winged front fiber-optic; optic-ready - Stock: AfterShock Grip - Weight: 6.04 lbs ** WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to [www.p65warnings.ca.gov](https://www.p65warnings.ca.gov). 0.0 ** ** ** ** ** 0 reviews ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ## Don't Forget Your Ammo ```json {"@context":"https://schema.org","@graph":[{"@id":"https://www.kygunco.com/#website","@type":"WebSite","description":"Shop KYGUNCO for firearms, ammo, accessories, parts, and outdoor gear at low prices with fast, easy nationwide shipping.","name":"KYGUNCO","url":"https://www.kygunco.com/","publisher":{"@id":"https://www.kygunco.com/#/schema/organization/kygunco"}},{"@id":"https://www.kygunco.com/product/mossberg-m990-spx-12ga-14.375-5rd-fde-aftershock-black#webpage","@type":"WebPage","description":"12 gauge semi-auto shotgun with a 3\" chamber, 5+1 capacity, optic-ready receiver, fiber-optic front sight, Cylinder Bore choke, and FDE Cerakote finish.","name":"Mossberg 990 SPX 12 Gauge Semi-Auto 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