The HK45 represents an evolutionary advancement of the Heckler & Koch USP, and shares the same operating principles of that weapon. It is available in the same ten variants as the USP. The HK45 is a full size model pistol, but significant effort went towards making it more ergonomic than the HK USP full-size chambered in .45 ACP by incorporating features found on the Heckler & Koch P2000. These include an extended ambidextrous slide release, a textured ergonomic grip with finger grooves, and interchangeable backstraps to fit differently sized hands. The newer grip and backstraps allow the pistol to sit lower into the web of the hand, contributing to greater control of the weapon and recoil management. In order to accommodate the smaller, more ergonomic grip, the HK45 has a magazine capacity of 10 rounds versus 12 rounds for the USP45. The HK45 also added grip serrations on the front end of the slide, a Picatinny rail in front of the trigger guard for mounting accessories, and an O-ring polygonal barrel similar to the USP Expert and Match models and the Mark 23 for more consistent lock-up of the slide and barrel during cycling and increased accuracy.
Gas BlowBack Airsoft pistol
ABS lower frame, outer barrel with Metal slide, slide stop, trigger, sights.
Ambidextrous mag release and slide stop.
Working decocking lever.
Full H&K Trades.