The ETS HK VP9 9mm 30 likely refers to an extended capacity magazine for the Heckler & Koch (HK) VP9 pistol chambered in 9mm Parabellum (9mm Luger).ETS (Elite Tactical Systems) is a manufacturer known for producing translucent polymer magazines for various firearms. In this case, the ETS HK VP9 9mm 30 indicates a magazine made by ETS specifically designed for the HK VP9 pistol. The “30” refers to the magazine’s capacity, which is extended to hold 30 rounds of 9mm ammunition.

Extended capacity magazines are popular among shooters who desire a higher round count without having to reload as frequently. They can be particularly useful for competitive shooting, tactical applications, or situations where a higher capacity is preferred.

It’s important to note that magazine capacity restrictions may vary depending on your jurisdiction. Before purchasing or using an extended capacity magazine, ensure that you are familiar with and comply with the laws and regulations of your specific location.