This is the Promag HK MP5, PTR9 9mm 50-round drum magazine.

*Note: this magazine is also compatible with the HK SP5, HK SP5K, and HK 94.

If you’re looking to maximize your range time with less reloads, this high-quality 50-round drum magazine is for you! Between the DuPont Zytel based polymer drum and steel tower, it doesn’t get much more durable than this offering from ProMag. Plus, you’ll find an anti-tilt polymer follower keeping it running reliably through all 50 rounds. 

Best of all, this drum mag is made right here in the USA and is backed by ProMag’s lifetime guarantee against manufacturer’s defects.

Order a drum or two and get ready to hit the range!