This is a HK LEM-DAO known as the P30 SubKompact chambered in 9MM, model 81000297.
This subcompact model of the renowned P30 series has all of the sought-after characteristics of the larger frame P30 and P30L pistols but in a more concealable design. The completely adjustable P30 grip feature - consisting of interchangeable backstraps and lateral grip panels - is replicated in the ultra-compact grip frame of the P30SK.
Features:
Polymer Frame
Cold Hammer Forged Barrel
Polygonal Rifling