PP-91 Kedr.
This powerful gun of infighting is produced in Russia. It’s intended for the Russian Ministry of Internal Affairs (MVD), which fight against criminals.

ПП-91 «Кедр».
Мощное современное оружие ближнего боя, серийно выпускаемое в России. Предназначен для вооружения подразделений МВД по борьбе с организованной преступностью.
См. world.guns.ru.

The PTRD-41 was an anti-tank rifle produced and used from early 1941 by the Soviet Red Army during World War II. Although unable to penetrate the frontal armor of German tanks, it was effective against the thinner sides of early-war German tanks and self-propelled guns. The PTRD was still effective against lesser armored vehicles like light tanks, armored halftracks, armored cars and unarmored vehicles such as trucks. A major weakness of the PTRD was that it was a single shot weapon that gave off an immense muzzle flash, thus giving away the unit's firing position. On the other hand, anti-tank rifle teams were very easily concealed. The PTRD was eventually replaced by the RPG series of anti-tank rocket launchers.

ПТРД было принято на вооружение 29 августа 1941 года. Предназначалось для борьбы со средними и лёгкими танками и бронемашинами на расстояниях до 500 м. Также из ружья мог вестись огонь по ДОТам/ДЗОТам и огневым точкам, прикрытым броней, на расстояниях до 800 м и по самолётам на расстояниях до 500 м.
Бронебойные пули поражали броню толщиной 40 мм на дистанциях 100 м, 35-мм броню на дистанциях 300 м. Высоким было и зажигательное действие пуль.