MARK III MAGAZINE 22LR 10ROUND 90231 Manufacturer Model Number: 90231 Manufacturer: Ruger Model: Mark III Magazine Caliber: 22 LR Type: Accessory-Magazines Item Type: Accessory Firearm / Accessory Capacity: 10 Shipping Weight: 0.15 Feature: Magazine for Ruger Mark III&IV Feature: .22 LR Optic Adjustable Objective: false Optic Reticle Illuminated: false