The SR-1 Vektor also known as the Gyurza (Гюрза, Russian for "blunt-nosed viper") or Serdyukov SPS is a semi-automatic pistol in 9×21mm Gyurza (cartridge also used by the SR-2 Veresk submachine gun) designed for the Russian military.

The SR-2 "Veresk" (Russian: СР-2 «Вереск», English: Heather) is a Russian submachine gun designed to fire the 9×21mm Gyurza pistol cartridge.

The 9×21mm Gyurza (Гюрза, Russian for "blunt-nosed viper") round is a Russian handgun round designed to defeat body armor that was developed by TsNIITochMash for its SR-1 Vektor semi-automatic pistol and SR-2 Veresk submachine gun.

The SR-1MP pistol (GRAU index - 6P53), also known as "Gyurza" (Viper) or SPS ("Samozaryádnyy Pistolyét Serdyukóva" - Serdyukov Semiautomatic Pistol), was designed by P. Serdyukov and I. Belyaev with the powerful 9x21 cartridge to replace the APS machine pistol used by the special forces of the Russian Federation.

In the mid 90-s, Russian engineers living in the Moscow suburbs decided to create an analogue of an elegant yet powerful pistol of that era - the famous Italian Beretta that’s still widely...

Current production version of this gun is known as SR1M. It features slightly improved ergonomics and some minor internal modifications. An SR1MP version is a kit, consisting of the SR1M pistol, special adapter with one or four Picatinny rails, and a quick-detach tactical suppressor, designed to work with supersonic 9×21 ammunition.

Jan 8, 2024 · In 2003, the design was modernized to the SR-1M, with a strengthened polymer frame and improved ergonomics. Another modernized variant is the SR-3MP, which features an M1913 rail adapter and threaded barrel for a sound suppressor. Recently, this author had the opportunity to inspect an SR-1M in late 2018 while visiting Chechnya.

The Central Research Institute for Precision Machine Engineering has completed a government contract to supply the SR1MP Gyurza pistols and SR2M Veresk submachine guns. The SR1MP Gyurza is an upgraded version of the SR1 developed …

Original Gyurza pistol adopted as SR-1. The Gyurza is a modern pistol of Russian origin. It fires the 9x21mm SP-10 round that was specifically designed for this pistol and is also used by the SR-2 sub machine gun. There are no variants although the design has changed over the years.

Jan 8, 2018 · TL;DR: Use SP-11 ammo and point fire towards the chest when possible. Hello everyone! u/naggingpeach and I have created a small guide to using the new SR1MP pistol or as we like to call it, the “Shrimp”