Kalashnikov assault rifle is very popular all over the world. Due to its reliability and high performance, it has become a symbol of Soviet weapons. In addition, the AK served as the basis for the creation of Saiga carbines, which were highly appreciated by many hunters.
All technical components of the machine are worthy of attention, but judging by the reviews, the AK-74 trigger mechanism is of more interest. Information about the design and purpose of the trigger for this shooting model is contained in the article.
Acquaintance
Kalashnikov assault rifle is an individual small-arms weapon, with the help of which the enemy’s manpower is destroyed. Also with the help of AK disable enemy fire weapons. In addition, you can eliminate the enemy hand-to-hand using an automatic machine equipped with a bayonet-knife. It is possible to install night shooting universal sights on the weapon. As ammunition, an ordinary cartridge containing a steel core is used, and options for which tracer bullets are provided. With full ammunition and without a bayonet, the machine weighs no more than 3.6 kg. Within one minute, up to 600 shots can be fired from a weapon.
About the main parts and mechanisms
The design of the Kalashnikov assault rifle has the following elements:
- receiver and barrel;
- sights;
- butt;
- pistol grip;
- shutter frame;
- gas piston;
- shutter and return mechanism;
- gas pipe and receiver pad;
- forend and shop;
- USM.
The AK-74 is also equipped with a muzzle brake-compensator and a bayonet-knife. The weapon is equipped with special accessories, a belt and a bag for ammunition. A rifle unit, for which a folding stock is provided, has a special case with a pocket for a clip.
On the design of a trigger for a Kalashnikov assault rifle
USM AK-74 consists of the following spare parts:
- spring-loaded sear, providing single shooting;
- trigger;
- spring-loaded hammers and their moderators;
- an interpreter whose task is to change the mode of fire;
- self-timer.
The location of the USM AK-74 was the receiver. The technical unit is mounted using three interchangeable axles.
About destination
USM AK-74 performs the following functions:
- Removes the trigger or self-cocking trigger.
- Holds the cock on the cocking cock.
- Provides automatic or single shooting. The trigger mechanism is also responsible for the ceasefire.
- With the help of the trigger in the AK-74, the impact on the hammer is carried out.
- Prevents shots if the shutter is not locked.
- Installs automatic weapons on the fuse.
About the Kalash trigger
The impact on the hammer is carried out by means of a spring-loaded trigger. It can be on a combat platoon and a self-timer. It is equipped with rectangular protrusions, a shank, trunnions and holes that the USM AK-74 axis is equipped with. The trigger is actuated by a combat spring, which is attached to the pins and made in the form of a loop. The second end of the spring is connected to rectangular protrusions on the trigger.
About trigger retarder
In order to improve the accuracy of the battle during automatic firing, the trigger is designed to slow down by means of a special spring-loaded element in the USM AK-74 device, which is called a moderator. It is equipped with front and rear protrusions, an axle hole, a spring and a latch that is connected to the rear protrusion with a pin.
About shooting single
After a shot has been fired, the trigger moves to its rear position and is held with a sear. This element is located on the same axis as the trigger. The sear is equipped with a special cutout for the translator sector, a spring and an axial hole. If the translator is on the fuse, its turns due to the cut-out are limited.
How are bursts fired?
The trigger is removed from the platoon due to the spring-loaded self-timer. Using this element of the trigger trigger is prevented if the barrel of the machine is open or the bolt is not locked. Self-timer equipped with:
- The sear, with which the trigger is mounted on the platoon.
- A special lever that rotates the self-timer for the protrusion in the bolt when it is in the front position.
- The spring. It is located on the same axis as the self-timer. The long end of the spring crosses the receiver and winds up in an annular groove on the axes where the self-timer and trigger are placed.
About the translator
With the help of this element of the trigger mechanism, the machine is set to fire in single and bursts. The translator is equipped with special trunnions. The place of their location became special holes in the receiver. If the translator is in the lower position, the Kalashnikov assault rifle is set to shoot solo. In the middle position - automatic fire. If the translator is moved all the way up, then the AK is installed on the fuse.
Misfire reasons
When using a Kalashnikov assault rifle, misfires sometimes occur. In this case, the ammunition is sent to the chamber, the bolt moves to the front position, and after the trigger is fired, the shot is not fired. There may be several reasons for misfires. Most likely the cartridge is defective. Also, the drummer, which jammed in the bolt, or the trigger mechanism, may be malfunctioning. According to experts, misfires occur when a mechanical assembly is dirty or grease is frozen in it. In this case, the machine is recharged. If the delay is repeated again, then the disassembly of the USM AK-74 can correct the situation. This unit may be broken or completely worn.
How to remove the trigger trigger assembly?
Judging by the reviews, some carbine owners are interested in how to remove the trigger on the AK-74. The automatic weapons are disassembled as follows:
- First you need to disconnect the clip from the machine. To do this, hold the weapon with one hand on the forearm, grasp the second with the magazine and, pressing the locking latch, gently pull down. The locking plate is equipped with special protrusions that are pressed with an awl or screwdriver.
- Under the barrel of the carbine in a special hole there is a ramrod. It needs to be removed.
- Then the cover is removed from the receiver. The guide tube in the return mechanism is equipped with a small protrusion. To dismantle, you need to press on it, and lift the lid itself.
- Then you can proceed to the extraction of the shock-return mechanism. This will be easy to do if his tube is advanced forward until its heel extends beyond the longitudinal groove of the box. To get the handset, you need to pry it by the end.
- Detach the shutter frame. The weapon is pre-set for automatic shooting. The dismantling of the bolt frame consists in taking it all the way, lift it and move it back.
- To remove the shutter, you need to take it back and crank it. If the actions are performed correctly, a protrusion should appear in the groove of the shutter frame. After that, the shutter is advanced and removed. Using a special punch, a stud is knocked out, which is necessary to hold the striker on the axis in the ejector, which is also dismantled along with the hammer.
- Before dismantling the gas pipe, its closing flag must be set upright. One end of the tube is connected to the pipe. To disconnect it, you need to pry it over the edge.
