This is the ProMag AR-15 .223/5.56 65-round window drum magazine.

Save your time and thumbs by reloading less frequently, thanks to this 65-round drum magazine from ProMag! 

Constructed from a proprietary DuPont Zytel based polymer, the magazine delivers a superior level of impact and corrosion resistance. Once you add the heat-treated chrome silicon wire spring and injection-molded polymer follower, the reliability is equally as high! 

Backed by ProMag’s famous lifetime warranty, you’ll be able to shoot for many rounds with no worries! Training with your AR-15 is critical, so let this drum magazine help you do that! 

Maximize your AR-15’s capacity and order one or two of these high-quality drum magazines!