TKB-059

{{more citations needed|date=August 2016}}

{{Infobox weapon

| name = TKB-059

| image = TulaStateArmsMuseum2013-08.jpg

| image_size = 300

| caption = прибор 3Б

| origin = Soviet Union

| type = Bullpup assault rifle

| is_ranged = YES

| service = Prototype only

| used_by = Soviet Union prototype only

| wars = none

| designer = Gennadij A. Korobov

| design_date = 1962–1966

| manufacturer = Tula Arms Plant

| unit_cost =

| production_date = 1966 (TKB-059)

| number =

| variants = Device 3B
TKB-059

| weight = 3.85kg {{cite web|url=https://modernfirearms.net/en/assault-rifles/device-3b-tkb-059/|title=Korobov Device 3B and TKB-059|work=modernfirearms.net|date=9 May 2018 |access-date=1 February 2023}}

| length = 690 mm

| part_length = 430 mm

| width =

| height =

| diameter =

| cartridge = 7.62×39mm

| cartridge_weight =

| caliber = 7.62mm

| barrels = 3

| action = Gas-operated

| rate = 1400–1800 rounds/min{{cite web|url=http://gunmagazine.com.ua/index.php?id=338|title=Оружейный журнал - ОГНЕННЫЙ ШКВАЛ|work=GunMagazine.com.ua|access-date=4 February 2017}}

| velocity =

| range =

| max_range =

| feed = 45-round detachable box three-row magazine

| sights = Iron sights

}}

TKB-059 (ТКБ-059) was a Soviet three-barrel bullpup assault rifle, capable of fully automatic fire, chambered for the 7.62×39mm round and manufactured by Tula Arms Plant in 1966. It was based on the Device 3B (Прибор 3Б), an earlier experimental assault rifle that also had three barrels.{{cite web|url=http://www.militaryparitet.com/nomen/russia/strel/ogneoru/data/ic_nomenrussiastrelogneoru/65/|archive-url=https://web.archive.org/web/20071013072329/http://www.militaryparitet.com/nomen/russia/strel/ogneoru/data/ic_nomenrussiastrelogneoru/65/|url-status=usurped|archive-date=13 October 2007|title=_11. АВТОМАТЫ - Военный паритет|work=MilitaryParitet.com|access-date=4 February 2017}} Both weapons were developed by the small arms designer Gennadiy Aleksandrovich Korobov.

Both the TKB-059 and the Device 3B used a specialized 7.62×39mm magazine with three columns, akin to three individual box magazines placed and attached side by side. There were two sizes of magazine: one with a total capacity of 45 rounds (15 rounds per column), and one with a capacity of 60 rounds (20 rounds per column). Each barrel was independently fed from its corresponding column.{{cite web|url=https://modernfirearms.net/en/assault-rifles/device-3b-tkb-059/|title=Korobov Device 3B and TKB-059|work=modernfirearms.net|date=9 May 2018 |access-date=1 February 2023}} The TKB-059 could be fired ambidextrously as the spent cartridge casings ejected downwards behind the magazines.{{Citation needed|date=July 2013}}

The TKB-059 prototype can now be seen at the Tula arms museum.[http://nnm.me/blogs/krapich/tulskiy_gosudarstvennyy_muzey_oruzhiya/ Тульский Государственный Музей Оружия]; item 83 in that list