| TKB-022PM | |
|---|---|
TKB-022 №1, 2 and 3
| |
| Type | Bullpup assault rifle |
| Place of origin | Soviet Union |
| Production history | |
| Designer | German A. Korobov |
| Designed | 1950s |
| Produced | 1962 (TKB-022PM No. 1) 1965 (TKB-022PM No. 2) 1968 (TKB-022PM5 No. 1) |
| Variants | TKB-022PM No. 1 TKB-022PM No. 2 TKB-022PM5 No. 1 |
| Specifications | |
| Mass | 2.8 kg (TKB-022PM No. 1) 2.34 kg (TKB-022PM No. 2) |
| Length | 525 mm |
| Barrel length | 415 mm, 16.3 inches overall |
| Cartridge | 7.62×39mm .220 Russian |
| Rate of fire | 560 rounds/min |
| Feed system | 30-round detachable magazine |
| Sights | Iron |
TKB-022PM No. 1 (ТКБ-022ПМ №1), TKB-022PM No. 2 (ТКБ-022ПМ №2) and TKB-022PM5 No. 1 (ТКБ-022ПМ5 №1) were Soviet bullpup assault rifles, capable of fully automatic fire, chambered for the 7.62×39mm round (TKB-022PM No. 1 and TKB-022PM No. 2) and the .220 Russian round (TKB-022PM5 No. 1), developed by the small arms designer German A. Korobov in the 1960s.
The weapons were gas-operated with an annular gas piston located around the barrel and a vertically moving bolt, which made it possible to minimize the length of the receiver group. A U-shaped rammer/extractor was used to chamber and extract the cartridge by pushing it into the chamber where after discharge was pulled back from the chamber and again, upon feeding the new cartridge, pushed forward and slightly up into an ejection tube above the barrel where finally exiting above the muzzle. Due to this ejection mechanism, it was possible to fire from both right and left arm positions.[1]
These weapons had the best barrel length to overall length ratio among the assault rifles. Firing from an unstable position, the TKB-022PM No. 1 and the TKB-022PM No. 2 had three times better accuracy than the AKM[citation needed]. The TKB-022PM5 No. 1 had better accuracy than the AKM when fired from a hand in a lying position at a distance of 100 meters[citation needed].
Although these assault rifles performed well, they were turned down by the Soviet army for being too radical at that time. Additionally, there were concerns about the displaced center of gravity to the tail end of the weapon and the durability of the weapon's plastic housing during prolonged operations under difficult conditions or during storage.
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