ProMag Magazine, 12 Gauge, 10 Rounds, Fits MKA 1919, Polymer, Black MKA-01 ProMag magazines are made in the USA and backed by a lifetime guarantee against manufacturer's defects. Magazine springs are precision wound using heat-treated chrome silicon wire and each and every step of the assembly process is checked and double checked in order to maintain the same consistent level of quality. Heat-Treated Chrome Silicon Wire Spring Manufactured & Assembled in the U.S.A. Easy Loading Rugged Construction Additional Information SKU MGPMMKA-01-cnNyZmVlZA UPC708279011399 Weight 1.44 LBS Capacity10Rd FitMKA 1919 Caliber12 Gauge Manufacturer Part NoMKA-01 TypeMagazine Sub CategoryShotgun Magazines ColorBlack