The USP-1 "Tyul'pan" (From

Russian Russian(s) refers to anything related to Russia, including: *Russians (, ''russkiye''), an ethnic group of the East Slavic peoples, primarily living in Russia and neighboring countries *Rossiyane (), Russian language term for all citizens and peo ...

: Унифицированный Стрелковый Прицел, первый образец, Unifitsirovannyj Strelkovyj Pritsel, pervyj obrazets, "Unified Firearm Sight, first model,

GRAU The Main Missile and Artillery Directorate of the Ministry of Defense of the Russian Federation (), commonly referred to by its transliterated Russian acronym GRAU (), is a department of the Russian Ministry of Defense. It is subordinate to the ...

index 1P29) is a Soviet/Russian universal optic sight, designed for use on the AK rifle family (

AKM The AKM () is an assault rifle designed by Soviet small arms designer Mikhail Kalashnikov in 1959. It is the most ubiquitous rifle of the Kalashnikov rifles. It was developed as a replacement to the AK-47 introduced a decade prior. Introduc ...

AK-74 The AK-74 (Russian: , tr. ''Avtomat Kalashnikova obraztsa 1974 goda'', lit. 'Kalashnikov assault rifle model 1974) is an assault rifle designed by small arms designer Mikhail Kalashnikov in 1974. While primarily associated with the Soviet U ...

N, AK-74M,

AK-101 The AK-101 is an assault rifle of the Kalashnikov series. It's marketed at those looking for a weapon that combines the logistical compatibility and familiarity of the 5.56×45mm NATO round with the reliability of a Kalashnikov. The design of t ...

AK-102 The AK-102 is a shortened carbine version of the AK-101 rifle, which was derived from the original AK-47 design and its AK-74 successor. The AK-102 is chambered to fire 5.56×45mm NATO ammunition, and is made exclusively for export purposes. ...

AK-105 The AK-105 is a shortened carbine version of the AK-74M rifle, which in turn was derived from the original AK-47 design and its successor, the AK-74. It's chambered to fire 5.45×39mm ammunition. Design Compared to the AK-74M, AK-101, and AK-103 ...

), the

RPK The RPK (russian: Ручной пулемёт Калашникова/РПК, Ruchnoy Pulemyot Kalashnikova, link=no, English: "Kalashnikov hand-held machine gun"), sometimes retroactively termed the RPK-47, is a Soviet 7.62×39mm light machine ...

-74N, the PKMN and the PKP "Pecheneg" and is designed for quick-mounting and quick-detaching. Compared with an open mechanical sight, the effectiveness of firing at targets is increased 1.2 to 2 times, and the time taken to conduct a firing session is reduced by 60%. It is designed by TsKB "Tochpribor" in

Novosibirsk Novosibirsk (, also ; rus, Новосиби́рск, p=nəvəsʲɪˈbʲirsk, a=ru-Новосибирск.ogg) is the largest city and administrative centre of Novosibirsk Oblast and Siberian Federal District in Russia. As of the Russian Census ...

. Production is conducted in Novosibirsk instrument manufacturing factory (NPZ).

Design

The sight possesses a mechanism for adjustments and a stadiametric rangefinder. No batteries are required in the sight. The optic scheme of the sight is a prismatic wrapping. It is easily mounted on the weapon using the standard

Warsaw Pact rail A dovetail rail or dovetail mount can refer to several types of sliding rail system found on firearms primarily for mounting telescopic sights. Colloquially, the term ''dovetail rail'' usually refer to any straight mounting bracket with an inver ...

. The sight is a copy of the British L2A2 Sight Unit Infantry Trilux.

Specifications

* Sight weight: 0.8 kg * Weight of a complete sight system: 1.25 kg *

Magnification Magnification is the process of enlarging the apparent size, not physical size, of something. This enlargement is quantified by a calculated number also called "magnification". When this number is less than one, it refers to a reduction in siz ...

: 4x *

Field of view The field of view (FoV) is the extent of the observable world that is seen at any given moment. In the case of optical instruments or sensors it is a solid angle through which a detector is sensitive to electromagnetic radiation. Humans a ...

: 8 (14) degrees * Exit pupil diameter: 6.5 mm * Exit pupil length: 35 mm * Resolution limit: 13 sec * Amount of light retained: >70 % * Adjustment range for zeroing: 0 – 400 m for vertical and horizontal adjustments * Dimensions (L x H x W): 203 mm x 80 mm x 178 mm

Literature (in Russian)

* Изделие 1П29. Техническое описание и инструкция по эксплуатации, АЛ3.812.129 ТО. — 1994 г. * Оружие ближнего боя России / Альманах. — М.: НО «Лига содействия оборонным предприятиям», 2010. — 660 с. — {{ISBN, 978-5-904540-04-3

References

Firearm components Optical devices