SR-2 Veresk

The SR-2 Veresk (СР-2 Вереск, Russian for "heather") is a Russian submachine gun.

History
Development of a new submachine gun chambered for the 9×21 mm cartridge (also used by the SR-1 "Gyurza" pistol) was launched in mid-1990s on the order of the FSB. A weapon was presented in 1999, developed in Klimovsk TsNIITochMash which received the designation of SR-2 (Spetsialnaya Razarbotka - 2, Special Development - 2) and nicknamed "Veresk" ("Heather", a plant).

"Veresk" and its round were created as a compact weapon capable of engaging enemies wearing Russian class-II body armor (able to stop ordinary pistol bullets, such as 9×19mm Parabellum and 7.62×25mm Tokarev), and soft-skinned vehicles, at distances up to 200 metres.

Features
The SR-2 "Veresk" differs from most SMGs by its gas-operated action with rotating bolt, typically used in assault rifles (normally SMGs utilise different blowback principles). This design is partially borrowed from the SR-3 "Vikhr" compact assault rifle. Externally the "Veresk" is similar to the Uzi; 20- or 30-round magazines are inserted into the pistol grip. There are two AK-style control levers on both sides of the receiver: the right one is the safety switch, the left is a fire-mode selector. The cocking handle is on the right side and is fixed to the bolt carrier, so it moves during firing. There is a mount for a "red dot" sight on top of the receiver (unlike the AK-style side rail). The weapon has an upwards-folding metal stock.

An SR-2M modified version also has a forward pistol grip under the handguard, with a protrusion to protect the shooter's hand from muzzle blast and accidents (similar to the grip on the MP5K). The SR-2M stock can be fully folded even with "red dot" sight installed.