The SPS (Russian: СПС, Самозарядный пистолет Сердюкова, meaning "Serdyukov Self-loading Pistol") is a Russian pistol, currently marketed as the SR-1 Vektor (Russian: СР-1 Вектор). Its GRAU index code is 6P53.

It is also known as the Gyurza (Russian: Гюрза; English: Blunt-nosed viper) during development.

History[edit | edit source]

The SPS was designed within the army program "Grach" to develop weapons for enhanced 9×21mm Gyurza ammunition. It was rejected by the army, but was immediately picked up by law enforcement agencies like FSB, as a replacement for the APS pistols.

In the late 1990s, however, the SPS was again picked up by the army, and was modified - the handle was redesigned for better ergonomics. Supposedly, it is currently used by the FSB, FSO and the Spetsnaz.

Design Details[edit | edit source]

The SPS is recoil-operated, double-action pistol. The weapon has two safeties; one on the trigger à la a Glock's trigger safety and the other being a grip safety.

The SPS uses powerful 9×21mm Gyurza ammunition, particularly of the 7N29 load, which is capable of defeating Class 3 bulletproof vests (30 layers of kevlar + 2.8 mm titanium plating) at 50 meters.

Variants[edit | edit source]


Original version.


Current production version. Modified version with ergonomic improvements and minor internal differences.


Modification kit for SR1M, with optional Picatinny rails and a quick-detach suppressor, designed to work with supersonic 9×21 ammunition.

See Also[edit | edit source]

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