Mossberg 590A1, Mariner, Pump Action, 12 Gauge, 3" Chamber, 18.5" Heavy Wall Barrel, Marinecoat Finish, Synthetic Stock with M-Lok Forend, 6Rd, Bead Sight 50767 • Pump Action • Capacity: 6+1 • Finish: Marinecote • Sights: Bead Sights • Barrel length: 18.5 • Overall length: 39.5 • Heavy Wall BarrelM-LOK Forend/Clean-Out Tube Heavy Wall Barrel Metal Trigger Guard & Safety • Pump Action • Capacity: 6 + 1 • Finish: Marinecote • Sights: Bead Front • Barrel length: 18.5" • 15in Free-Float MLOK Rail/ Ambi Bolt Release