MANUFACTURER: Springfield Armory FAMILY: M1A Rifle Series MODEL: M1A Magazine TYPE: Accessory-Magazines ITEM GROUP: Rifle Magazines CALIBER/GAUGE: 7.62 x 51mm | 308 Win FINISH: Parkerized FINISH TYPE: Black CAPACITY: 5 WEIGHT: .35 SHIPPING WEIGHT: 0.4 lbs. MFG MODEL NO: MA5018 UPC: 706397250188