A recent HK pistol design, the P30 is a modern police and security pistol that combines function and safety. Ergonomic features include a special grip frame with interchangeable backstrap inserts and lateral plates, allowing the pistol to be individually adapted to any user. Ambidextrous controls include dual slide releases and magazine release levers.

A Picatinny rail molded into the front of the frame makes mounting lights, laser aimers, or other accessories easy and convenient. The extractor doubles as a loaded chamber indicator providing a subtle tactile and visual reminder of a loaded chamber.