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Lobaev Arms, officially the Integrated Systems Design Bureau, LLC (Ru:OOO Конструкторское бюро интегрированных систем Konstruktorskoye byuro integrirovannykh sistem (KBIS)), is a Russian designer and manufacturer of precision rifles, precision grade rifle ammunition, and rifle parts. Lobaev Arms is based in Tarusa (Russian: Тару́са), Kaluga Oblast, Russia.

KBIS traces its history back to a small arms company Tsar Cannon LLC (Ru: ООО «Царь-пушка» OOO «Tsar'-pushka» TsP), founded by the Lobaev brothers in Tarusa in 2003 for the production of sporting benchrest rifles.^[1] In 2007, an early prototype of the SVL sniper rifle was created, which later became the ancestor of the SVL / SVLK-14 family - the main lineup of the company. In 2009, a pre-production sample was completed, created on the basis of the King v.3 bolt group. In 2010, the production of the first serial model of the SVL rifle began,^[2] adopted by the security service of the President of the Russian Federation.^[3] Since 2009, design work has been carried out on the Tsar Cannon on a light silent rifle DVL and a special subsonic cartridge 8.6 × 39 mm.

In 2010, the activity of Tsar Cannon LLC in Russia was terminated. Most of the team moves to the UAE, where they continue to work on the subject of sniper rifles as a division of the local company Tawazun Advanced Defense Systems (TADS).^[4] In the UAE, Tarusa rifles were improved and sold under the indices: SVL - KS-11, and DVL - SS-113. The Tsar Cannons team has developed more than 20 models of self-loading and bolt-action small arms for the Military of the United Arab Emirates.

In 2013, the company returned to Tarusa, work was resumed on the design and production of high-precision sniper rifles, accessories for them and ammunition. Barrel and cartridge production has been established. To modify the DVL silent rifle, a new subsonic cartridge of increased power 10.3 × 45 mm was created.

In May 2023, the company started production of import-substituted .408 Cheyenne Tactical cartridges.^[5] The production of a new self-loaded sniper rifle codenamed "Zveroboi" with a range of over 2 km and chambered for the Cheytac cartridge is being established as of July 2023.^[6]

Integrated Systems Design Bureau LLC is a part of the LOBAEV group of companies named after the names of its founders the brothers Vladislav and Nikolay Lobaev. In addition to KBIS, LOBAEV corporation includes a number of highly specialized divisions.^[7]

• KB of integrated systems - A design office responsible for development and pre-series production.

• Lobaev Arms - The basic unit engaged in mass production and customization of Lobaev brand sniper rifles whose main models are SVL, DXL, DVL, TSVL.
• Lobaev Ammo - Cartridge production, serially producing sniper rifle cartridges, including special ones of in-house design - .338LW and .40LW .
• Lobaev Hummer Barrels - Barrel production. Barrels, high-precision champion barrels, small-bore .22LR caliber barrels, barrels and blanks for pneumatics are offered for sale.
• Lobaev Robotics - A division specializing in the creation of military robots and other robotics. A light mobile tactical robot PC1A3 "Minirex" with a firing module is proposed for implementation. The robot is designed for carrying out assault operations indoors and in open areas, equipped with automatic remote-controlled small arms.

• ООО (общество с ограниченной ответственностью) is a type of private limited company in Russia
• ORSIS, a similar Russian company

• Official English page