Mossberg 500 12 Gauge Security Barrel 18.5in Blued. Mossberg crafted these Shotgun Barrels with a bead sight for your aiming needs. The Mossberg 500 12 Gauge Shotgun Security Barrel also has a cylinder bore and the blued matte finish is non-reflective and resistant to wear and corrosion for an increased lifetime of reliable performance. Amplify your shooting skills at the range or on hunts by installing the Mossberg 500 12GA 18.5in Blued Security Barrel. Specifications for Mossberg 500 12 Gauge Security Barrel 18.5in Blued: Manufacturer: Mossberg Finish: Blued Barrel Length: 18.5 in Gauge: 12 Gun Make: Mossberg Gun Model: Mossberg Model 500 Condition: New Caliber: 12 Gauge Features of Mossberg 500 12 Gauge Security Barrel: Bead sight Cylinder bore Matte blued finish Compatible with 12 Gauge Mossberg 500 and Maverick 88 6-shot models Package Contents: Mossberg 500 12 Gauge Security Barrel What firearm models does the manufacturer say Mossberg 500 12 Gauge Security Barrel 18.5in Blued is compatible with? The manufacturer says that Mossberg 500 12 Gauge Security Barrel 18.5in Blued is compatible with Mossberg Model 500Mossberg 90015 500 Barrel 12 Gauge 18.5 Front Bead Sight Blued