The gun is a kind of short-barreledweapon, which is intended to fire at short distances. The first such devices were singly charged. Modern pistols are rifled, they have a three-dimensional shop.
This feature of pistols when firing oftenis undesirable. For example, in battle, the loud sound of a shot can unmask or hunting a game. The first devices to suppress such noise appeared in the late nineteenth century. And in the last century, their serial production began.
A pistol with a silencer does not create much noise fora reduction in the speed and temperature of the muzzle. The simplest device for reducing sound is a nozzle with one or two expansion chambers, which are separated by transverse diaphragms. Its action is based on the expansion of powder gases even before they enter the atmosphere, due to which the noise is silenced. However, the disadvantage of this device is that some of the gases are ahead of the bullet.
A modern pistol with a silencer can not onlybe almost noiseless, but also shoot without a flame. Such weapons in the USSR began to be produced in the 1950s for security officers. It could be divided into two groups: for the army and for the KGB. In the second case, special ammunition was required. Pistols with a silencer for the army were created on the basis of Stechkin or Makarov. They were produced for military intelligence units and special forces. The basis for a noiseless PB was a Makarov pistol with a silencer. The device for eliminating the sound of a shot on a given weapon was an integral, demountable, two-piece device. This made it possible to remove the attachment of the silencer, and quickly install it before application. PB inherited from Makarov shock-trigger mechanism. The fuse was located on top of the shutter. When turned on, he pulled the trigger from the platoon automatically.
