MAGAZINE MKIV 22/45 22LR 10RD 90599 Manufacturer Model Number: 90599 Manufacturer: Ruger Model: MKIV 22/45 Magazine Caliber: 22 LR Type: Accessory-Magazines Item Type: Accessory Firearm / Accessory Capacity: 10 Shipping Weight: 0.15 Feature: Magazine for 22/45 .22 LR Optic Adjustable Objective: false Optic Reticle Illuminated: false