1) The RG-6 (GRAU designation 6G30) is a Russian 40 mm semi-automatic, 6-shot grenade launcher developed between 1993 and 1994 by TSKIB SOO. The RG-6 was required to increase the firepower of the infantry during urban combat, seen in small-scale conflicts, such as the Chechen wars. The RG-6 entered limited production by the mid-1990s and is now in use by various elements of Russian Army and special forces such as those in the MVD.
2) The DP-64 Nepryadva is a Russian special-purpose double-barreled over/under grenade launcher designed to protect ships, dockyards, water development works, and other coastal installations from combat swimmers and naval special forces. The weapon is breech-loading and operates much like a large shotgun with a side-break breach, utilizing both direct and indirect iron sights. The weapon is capable of firing grenades indirectly at ranges up to 400 meters; however, these grenades act much like small depth charges, attacking submerged swimmers like true depth charges attack submersibles.