Promag Handgun Magazine for Glock 48/43X Black Polymer Drum 9mm Luger 50/rd

Features:50-round drum magazineFits the Glock Model 48 and 43X 9mm pistolsDrum 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.