The most important features at a glance:

Ergonomical (HK45 full size) and slimline (HK45C) grip profiles with

replaceable grip panels to adjust the feel and grip circumference of

the weapon to suit individual operator hand-shooting preferences

A compact 8-round magazine is also available for use with

the HK45C

Integrated Picatinny rail molded into the polymer frame dust cover

Enlarged ambidextrous magazine levers

Improved ergonomic control levers (safety and/or decocking)

Low-profile, drift adjustable, 3-dot sight

Contoured and radiused slide with forward grasping grooves

Ambidextrous slide release

Black polymer frame