SR-3 Vikhr
The SR-3 Vikhr is a Russian 9×39mm compact assault rifle. It was developed by A. D. Borisov, V. N. Levchenko and A. Tyshlykov at TsNIITochMash in the early 1990s and was manufactured in 1994. Heavily based on the AS Val, but lacking an integral suppressor, it has a newly designed folding stock and charging handle for ease of concealed carry. The abbreviation "SR" stands for spetsialnaya razrabotka—special development.
Because the SR-3 Vikhr is a rather expensive lightweight carbine, it was not mass-produced for the Russian military. It was primarily used by the Russian Special Operations Forces and certain government officials' security details.
History
After the adoption of the SR-3 Vikhr, the Federal [Security Service (Russia)|FSB] established new operational requirements with a goal to combine the qualities of the SR-3, AS Val and VSS Vintorez, resulting in a new variant designated as the SR-3M.Design
The SR-3 is a compact assault rifle chambered in 9×39mm subsonic cartridge. It is primarily used with the SP-6 armour piercing ammunition with a hardened steel penetrator, that can penetrate a 6mm steel plate at a range of 200 metres. Alongside the SP-6, a lower cost SP-5 ball ammunition with a heavy bullet and PAB-9 ammunition is also used. The SR-3 is based on the AS Val, but lacks the integral suppressor. As a result, it is much more compact than the AS Val.The SR-3 is a select fire, gas-operated action with a long stroke piston. It uses the same rotating bolt group from the AS Val, and fires from a closed bolt. It has a more compact, top-folding buttstock and a simplified flip-up rear sight which can be set for 100 metres or 200 metres distance compared to the AS Val. The redesigned charging handle, made in the form of dual sliders above the forearm, and must be grasped by thumb and index finger and then retracted to load the weapon. The trigger unit is generally the same as in the AS Val, but the AK-type safety is replaced by ambidextrous lever above the pistol grip. The fire mode selector is of cross-bolt, push button type and located behind the trigger, inside the trigger guard.