590R 12 GAUGE PUMP ACTION SHOTGUN 590R shotguns are the newest additions to Mossberg's tactical lineup. They combine time-tested pump-action performance with ground-breaking new features like a rotary safety selector, an ergonomically-designed forend, and an integrated barrel/single piece heat shield combination. FEATURES: 12 Gauge, 3" Chamber, 6+1 Capacity Ambidextrous AR-Style Rotary Safety Selector Stock Base/Adapter is compatible with other Grip designs; Accepts Mil-Spec stocks; Offers 5 Positions of Adjustment; 2-Sided QD mounting ports 18.5" Barrel with Integrated Heat Shield; Available in Standard and Standoff versions Enlar Mfg: Mossberg