ProMag DRMA26 Standard 30rd Drum 9mm Luger Fits AR-15, Compatible w/Glock Style Magazines Black DuPont Zytel Polymer

Pro Mag drum magazine is compatible with your AR-15 with Glock style mags. It is constructed of DuPont Zytel polymer with injection molded mag follower and mag spring formed from chrome silicone wire. Made in the USA.