Automatic Korobov TKB-0111
After equipping the 1974 of the Armed Forces of the USSR with the approved party leadership of the country and the high command of the USSR Ministry of Defense 5,45-mm AK-74, the next period of development of small arms in the USSR ended.The basic concept of the development of small weapons on 70-80 XX century
The main result is the introduction of a relatively powerful unitary cartridge. 5.45x39 mm. a small impulse. But in the course of the combat use of the new machine gun, some serious defects were revealed. These should include the low accuracy of automatic fire, when only the first two munitions were directed towards the target, and the others went beyond the scatter ellipse. Modern high-tech combat put forward new requirements for the tactics of the main units of the USSR Armed Forces, which was changing in the direction of complication. To accomplish tactical maneuvers, the machine gunner had to confidently use small arms from various positions, including non-standard and inconvenient ones, which put forward new requirements for the quality of small arms. In this regard, at the direction of the upper echelons of the Soviet and party authorities, the Abakan program was developed to develop a new constructive model of the machine gun of the same caliber, under the same cartridge that would have the best firing characteristics.
Development of the automatic machine Korobov TKB-0111
For the development and implementation of the product, the Central Research Institute of Precision Engineering was responsible, and under its general authority, the employees of the laboratories of Tula, Izhevsk and Kovrov undertook the implementation of the Abakan program, the practical results that were already visible in the summer of 1984. One of the claimants for approval was the TKB-0111 machine gun, which was created by the ingenious designer of the “socialist era” in Russia, Korobov G.A.
In the 1967, this Tula rifle master designed the TKB-072 submachine gun, which could fire automatic rifles in two modes: with a rate of fire at 500 and 2200 per minute. In addition, the machine was given the function of conducting dosed automatic fire with three bullets in the queue. At the beginning of the 70-ies of the XX century, based on the previously made TKB-072, Korobov prepared a model of the 2, a TKB-0111 mode automaton. When performing test tasks for shooting in 1973, TKB-0111 demonstrated better accuracy than the Kalashnikov assault rifle, especially when shooting from the “standing from the arm” position at a high shooting rate. In the production of fire from other positions, the results were shown quite confident. Recall that it was precisely the accuracy of the automatic fire from the positions of "standing with the hand" and "lying with the stop" that was the determining factor of the Abakan program.
Automatic device
5,45-mm automaton Korobov TKB-0111 is a product made according to the “classic” - the functionality of the automatic mode is based on the gas-tap effect of powder gases, the barrel bore was blocked by a shutter vertically. The gas piston rod was supplied with a spring to soften the blow.
USM was designed for 3 version of firing: single, burst and dosed (for 3 shot). The rate of fire in the dosed form of fire - 1700 rds / min, the queue - 500 rds / min.
The stem part of the product is equipped with an impressive gas-dynamic type compensator.
The components of the firing mechanisms are represented by a loading lever and a fuse-flag, which are located to the right of the trunk box. The power supply was carried out by applying cartridges from the holder to the 30 cartridges.
Weapons submitted for use in the Abakan program
The main competitors of the 5,45-mm machine gun of Korobov TKB-0111 were presented products of AS and ASM Nikonov, AKB and AKB-L V.M. Kalashnikova, TKB-0146 Stechkina, TKB-0136-3М Afanasyev, AEK-971 Koksharova. By the 1987 year, according to field and test samples and shootings, Nikonov and Stechkin products were selected for full military examination tests, and the Korobov TKB-0111 submachine gun received an incomprehensible characteristic - “recommended in an optional (optional) order”. As a result, Nikonov's product won, which received a letter — the alphabetic number of AN-94, while Korobov's product remained as a museum exhibit.
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