Features and Specifications:40-round drum magazineFits the HI-POINT 4595TS .45 ACP CarbineDrum housing constructed of a proprietary DuPont Zytel based polymerMagazine upper tower has full length steel internal insert stamped and welded like the factory magazineInjection molded magazine followerMagazine spring formed from heat treated stainless steelMade in U.S.A.