What's in the Box Mossberg 590RM Mag-Fed 12 Gauge Pump-Action Shotgun 10 Round Magazine Cable Lock Owner's Manual The 590RM Rotary Safety Selector shotguns utilize the first production double-stack magazines made for pump-actions - providing more efficient capacity vs. length than competitive designs. Plus, they combine time-tested Mossberg durability with ground-breaking new features like a rotary safety selector; a compact, ergonomically-designed forend, and an integrated barrel/heat shield combination. Firearm Features Ambidextrous AR-Style Rotary Safety Selector 10-Round Detachable Magazine 18.5" Barrel with Integrated Heat Shield Magpul MBUS 3 Adj Sights Enlarged, Beveled Loading Port with Exposed Follower Flat Profile Trigger with smooth, crisp break 5-Position Adjustable Stock w/MOE Pistol Grip, Interchangeable Recoil Pad, 2 QD Ports Top Picatinny Rail for AR-Style Optics Firearm Specifications Manufacturer: Mossberg Model: 590RM Mag-Fed Gauge: 12 Gauge Barrel Length: 18.5" Overall Length: 36.9" Finish: Phosphate Barrel Sights: Magpul MBUS 3 Adj Sights Grips/Stock: 5-Pos Adj Stock w/Interchangeable Pad, MOE Pistol Grip, Compact Forend (Black) Magazine Capacity: 10 + 1