At KCI USA, they test shoot their magazines, a lot. Located in Las Vegas, KCI provides magazines to the biggest machine-gun rental ranges in the world. KCI USA also invests in high tech quality control. Their all-steel construction and curved mag bodies provide reliable feeding of all 30 rounds. The KCI 30-round H&K magazine works with H&K MP5 pattern firearms including: the MP5k, SP89, SP5K Zenith, MKE, Omega, POF, HK Contract MP5 variants, SW5, BW5, CA94, D54, V94, clones, and AR builds.
Specifications: Caliber: 9mm, Capacity: 30 Rounds, Body Material: Steel, Color: Black, Floorplate: Steel.
This is for one KCI stick mag for MP5 style 30 round magazine.