FIVE-SEVEN MAG 5.7X28MM 20RD 3866100030 Manufacturer Model Number: 3866100030 Manufacturer: FN Model: Five-Seven Magazine Caliber: 5.7 x 28mm Type: Accessory-Magazines Item Type: Accessory Firearm / Accessory Capacity: 20 Finish: Black Polymer Shipping Weight: 0.224 Feature: 20rd Mag for FN 5.7X28mm Optic Adjustable Objective: false Optic Reticle Illuminated: false