Other Details Manufacturer: Magpul Industries Manufacturer Part Number: MAG556-MCB Accessories: With Window Caliber/Gauge: .223 REM/5.56 NATO Capacity: 30 Cartridge: .223 REM/5.56 NATO Color: Modified Coyote Brown Finish: Coyote Brown Fit: AR Rifles Make: AR-15 Make/Model: AR-15 Material: Polymer Model: M3 Product Type: Magazine Quantity: 1 Subcategory: Rifle Magazines