Mossberg Remington 870 12 Gauge Security Barrel Blued. 5 in Gauge: 12 Gun Make: Remington Gun Model: Remington Model 870 Condition: New Caliber: 12 Gauge Package Contents: Mossberg Remington 870 12 Gauge Security Barrel The Mossberg 90335 Extra Barrels 12 Gauge 18 1/2" Blue Front Bead is a quality addition to the Mossberg lineup. For more great deals on Shotgun Barrels by Mossberg please browse our Mossberg Gun Parts page. What firearm models does the manufacturer say Mossberg Remington 870 12 Gauge Security Barrel is compatible with? The manufacturer suggests that Mossberg Remington 870 12 Gauge Security Barrel is compatible with Remington Model 870Mossberg 90335 Extra Barrels 12 Gauge 18 1/2 Blue Front Bead