Mossberg 500 12 Gauge 24'' Blued Adjustable Rifle. It has a matte blued finish. Specifications for Mossberg 90121 500 12 Gauge 24" Blued Adjustable Rifle: Mfg Item Num: 90121 Supplier SKU: 23500 Category: EXTRA BARRELS Caliber or Gauge: 12 Gauge Length: 24" Model: 500 Sights: Adjustable Rifle Bore Type: Fully Rifled Finish: Blued The Mossberg 90121 500 12 Gauge 24" Blued Adjustable Rifle 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 90121 500 12 Gauge 24" Blued Adjustable Rifle is compatible with? The manufacturer suggests that Mossberg 90121 500 12 Gauge 24" Blued Adjustable Rifle is compatible with Mossberg Model 500