The TKB-0146 (Russian: ТКБ-0146) is a bullpup assault rifle prototype designed by Igor Yakovlevich Stechkin at the TsKIB SOO. The gun participated in the Russian Army's Project Abakan assault rifle trials.[1][2]
| TKB-0146 | |
|---|---|
| Type | Bullpup Assault rifle |
| Place of origin | Soviet Union |
| Production history | |
| Designer | Igor Yakovlevich Stechkin |
| Specifications | |
| Mass | 3.8kg |
| Length | 794mm |
| Barrel length | 420mm |
| Cartridge | 5.45×39mm |
| Caliber | 5.45mm |
| Rate of fire | 600 rpm (sustained) 2000 rpm (two-round burst) |
| Muzzle velocity | 920m/s |
| Feed system | 30 round AK-74 compatible box magazine |
| Sights | Iron sights |
Nikonov's AS[M] and Stechkin's design were the only two truly innovative designs in the Abakan competition that made it to the final testing round; all other 6 competitors that made it that far were based on more conventional designs. Stechkin's design could fire two-round bursts at 2000 rpm or sustained fire at 600 rpm.[3] Stechkin's gun was slightly more accurate than Nikonov's, but turned out less reliable, mainly because it accumulated more fouling. Nikonov's design won and became the AN-94.[3] In TKB-0146, switching from one-round semi-automatic to fully automatic fire was accomplished by a secondary trigger located behind the main trigger. Squeezing the main trigger slightly, fired off a single round. Pulling it back fully, so that it pressed the secondary trigger, enabled fully automatic fire. Switching to the two-round burst mode was done by operating a different lever.[4][3]
Two exemplars can be seen in the Tula arms museum; one of these is an early prototype that was configured for three-round bursts rather than two, which was the option for the later models.[5]
See also
References
- ^ "У Истоков «Абакана»", Ружьё. Оружие и амуниция, 1998/1, pp. 6-8
- ^ Nowa Technika Wojskowa 2002/03, page 23
- ^ a b c Михаил Дегтярёв, "«Абакан» Стечкина" (Stechkin's Abakan), Калашников. Оружие, Боеприпасы, Снаряжение, 2004/1, pp. 10-16; HTML version
- ^ http://wartime.org.ua/2808-fnalsti-konkursu-abakan.html
- ^ Оружие И.Я. Стечкина, Официальный сайт Тульского государственного музея оружия, retrieved 2013-4-7
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