What's in the Box Mossberg 990 AfterShock SPX Optic-Ready 12-Gauge Semi-Auto Cable Lock Owner's Manual Ultra-compact and easy to maneuver, the 990 AfterShock SPX delivers 5+1 performance, paired with a host of newly added functional tactical features. Firearm 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 Firearm Specifications Manufacturer: Mossberg Model: 990 Aftershock SPX Gauge: 12-Gauge Action Type: Semi-Auto Chamber Size: 3" Usage: Security Barrel Type: Integrated Heat Shield Barrel Length: 14.75" Barrel Finish: Cerakote - OD Green Choke: Accu-Choke System - Cylinder Bore Capacity: 5+1 Length: 27.125" Sights: Winged Front FO; Optic-Ready Stock: AfterShock Grip