But i dont think that its possible to use Shmel at close ranges, but russian SF has this baby http://world.guns.ru/grenade/gl27-e.htm
"GM-94 grenade launcher is a relatively recent development of famous Rusian KBP design bureau, located in the city of Tula. It is intended mostly for various Spetsnaz elements of Russian army, FSB (Federal Security service) and MVD (Internal Affairs Ministry). GM-94 is a weapon for urban warfare - its main goal is to provide troops with short and very short range weapon firing high explosive and non-lethal (tear gas) shells. It uses proprietary 43mm ammunition, available in several loadings, with non-fragmenting HE (FAE / thermobaric) warhead, les-lethal (tear gas canister or rubber slug), and several others. The key feature of HE warhead is that it is made mostly of plastic, and its primary kill effect is achieved by the blast (high temperature and high pressure). Kill radius is said to be about 3 meters, while safe standoff (minimal range of fire) range is only few meters more. Therefore, such ammunition can be safely used during room-to-room searches from very short range, without the danger of hitting the operator or his teammates with occasional fragments."