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

Features: 50-round drum magazine Fits the Glock Model 48 and 43X 9mm pistols Drum housing constructed of a proprietary DuPont Zytel based polymer Magazine upper tower has full length steel internal insert stamped and welded like the factory magazine Injection molded magazine follower Magazine spring formed from heat treated stainless steel Made in U.S.A.