The P30 was designed as a modern police and security pistol combining optimal function and safety. These V1 models feature HK's DAO light LEM (Law Enforcement Modification) trigger and has a no external safety or decocking button. Ambidextrous controls include dual slide releases and magazine release levers. Ergonomic features include a grip frame with interchangeable backstrap inserts and lateral plates, allowing the pistol to be adapted to any user. The HK Law Enforcement Modification (LEM) trigger system combines the advantages of a cocked striker component (constant level of trigger pull from first to last round fired) with a double-action hammer system. Ships with two 17RD magazines.

Introduced in 2008, the P30L (for Long) is essentially identical to the P30 except P30L has a 1/2" longer slide and barrel. Like the P30, the P30L was designed as a modern police and security pistol and combines optimal function and safety. Features include a special grip frame with interchangeable backstrap inserts and lateral plates, ambidextrous slide and magazine release levers, and a Picatinny rail molded into the front of the frame. The extractor serves as a loaded chamber indicator providing a reminder of a loaded chamber that can be subtly seen and felt. An open notch rear sight with luminous (non-radioactive) contrast points allows for fast and accurate target acquisition, even under poor lighting conditions. This P30L is a V1 "Lite" LEM trigger system which is a DAO. It does not have an external safety or decocking system. Pistols come with two 10RD magazines.

HK's 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. The frame also has a Picatinny rail molded into the front. Its slide is one-piece machined from nitro-carburized steel with a corrosion resistant blued finish. The P30 utilizes ambidextrous dual slide and magazine release levers, and extractor which doubles as a loaded chamber indicator, and polygonal bore profile. This V3 LS model has a longer slide, ambidextrous safety/rear decocking button, spurred hammer, polymer recoil absorber "stop" bushing, and night sights. Included are two backstraps, lateral grip plates, and two 15-round magazines.

HK's 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. The frame also has a Picatinny rail molded into the front. Its slide is one-piece machined from nitro-carburized steel with a corrosion resistant blued finish. The P30 utilizes ambidextrous dual slide and magazine release levers, and extractor which doubles as a loaded chamber indicator, and polygonal bore profile. This V3 LS model has a longer slide, ambidextrous safety/rear decocking button, spurred hammer, polymer recoil absorber "stop" bushing, and night sights. Included are two backstraps, lateral grip plates, and three 17-round magazines.