Unlike other grenade launchers, the HK69 A1 has the capability to fire a variety of 40 mm x 46 ammunition (including CS, HE, AP, non lethal and flares) at ranges of 300-400 meters with a high degree of accuracy while weighing only a highly portable 2.6 kg.

The ladder sight is for ranges of 100-400 meters, and the HK69A1 also has a flip-up rear dual aperture short range sight for distances of 50 and 100 meters. The break-open action and separate manual hammer allows the HK69A1 to be loaded and unloaded without the hammer being cocked. A retractable stock allows the HK69A1 to be fired as a pistol or from the shoulder.