The HK79A1 is a variant specially designed for installation on the HK33 assault rifle.
Based on the HK69A1 is the HK79 under-slung grenade launcher, designed to be mounted under the barrel of the G3 and G41 series of assault rifles (with the exception of the short, carbine versions). When attached, the HK79 does not affect the accuracy of the rifle, since the barrel is free to oscillate. Handling and operating functions of the rifle are not affected by the presence of the launcher. The weapon is used by the armed forces of Nicaragua, Norway and Panama. The HK79 is a single-fire, manually operated weapon, whose breech-loaded steel barrel is tilted downward for loading and unloading (compared to the HK69A1, which hinges upward).[1] The barrel in the closed position is locked into battery with a rear-mounted latch. The weapon lacks an extractor; cuts made into the barrel's base assist the user in manually removing spent cartridges.
