ProMag AR-15 9mm Colt / SMG Type 30-Round Drum Magazine

This is a 30-round Colt SMG-style 9mm AR-15 drum magazine from ProMag.Next range day, turn some heads with the ProMag AR-15 9mm Colt SMG 30-round drum magazine.This aftermarket AR9 drum magazine features a lightweight and durable steel-lined DuPont Zytel polymer body for increased strength and corrosion resistance in harsh tactical environments.A heat-treated chrome silicon wire spring and injection-molded polymer follower work together to eliminate binding and provide consistent cartridge align