After completing the task, Qin Shuai went home and quickly learned about the silencer pistol on the Internet and various learning materials.

In his memory, there wasn't much information stored about these things, and now that the pistol was in his hands, he was looking for the answer closest to what he wanted as he watched.

If he didn't guess wrong, the person just now must be an alien, he simulated the appearance of an earthling, and there seemed to be nothing wrong with others, but Qin Shuai could feel that something was wrong with him.

The sound of the pistol mainly comes from the bullet out of the chamber, and the air rushes out of the muzzle to cause a huge pressure to cause shock and vibration to the air outside.

A muffler is a noise reduction device installed on the airflow channel of aerodynamic equipment or in the intake and exhaust systems. Mufflers block the propagation of sound waves, allowing airflow to pass through, and are an effective tool for controlling noise.

There are many types of mufflers, but they can be divided into several main types, namely resistive mufflers, resistant mufflers, impedance composite mufflers, etc.

Resistive mufflers use porous sound-absorbing materials to reduce noise, and the sound-absorbing materials are fixed on the inner wall of the airflow channel or arranged in the pipe in a certain way, which constitutes a resistive muffler. When the sound wave enters the resistive muffler, a part of the sound energy is rubbed in the pores of the porous material and converted into heat energy to dissipate, so that the sound wave passing through the muffler is weakened.

A resistive muffler is like a purely resistive circuit in electricity, and the sound-absorbing material resembles a resistor. Therefore, people call this kind of muffler a resistive muffler. The resistive muffler has a bad effect on medium and high frequency muffling and poor effect on low frequencies.

And the silencer pistol he saw in front of him, all kinds of resistive mufflers seemed to be used a little bit, but there were both advantages and disadvantages, the disadvantage is that although the human eye cannot see, there is a feeling that it is right in front of you. This should be a kind of band.

Qin Shuai can catch this kind of band, and others should be able to catch this kind of band, such as sharpshooters, such as Qin Chuan.

Qin Shuai actually faintly felt a special energy in his body for a long time, he was particularly perceptive and keenly aware of some alien weapons, he could detect it within a certain distance, but others did not have this feeling.

The night was relatively quiet, he simply dismantled the pistol, looked at the internal structure inside, did not guess, and was shocked to see that it was so advanced, it turned out that their technology was so advanced, there was an advanced filter in it, no wonder this person pulled out a pistol to face himself today.

Qin Shuai estimated that the theory he had fooled him before had been discovered, and it was naturally possible to produce old-fashioned tanks with that set of theories, but the new tanks would definitely not be produced, because they had long been eliminated and backward, so he deliberately said this on the pretext that aliens did not understand the culture of the earth, but that person must have noticed it.

Qin Shuai thought: "Look at him, he should have a filtering function, and then analyze it, you can detect that what I said to him was made up." ”

He found that some parts could actually be assembled by himself, so he simply spent half the night memorizing all the parts, and then divided them into categories and sorted them out by himself, so that he could produce a new type of silencer pistol.

But the Union Army does not give him the permission to produce pistols now, and he can't make weapons casually, and he can only make his own inventions if he wants to, so he must use this theory to make other weapons. This makes it even more difficult, these things are assembled pistols, in such a shell, he has to produce other novel shells, why not produce toy tanks, he has a whimsy.

"Simulate these parts of the silencer pistol into a set of devices, put them in my toy tank, and then do some training to block waves, and then add my ray device, it's a new type of weaponry, my previous little train was forced to self-immolate, and now I'm going to build a few more small tanks, and then, let my military dogs, each with a small tank, this feels quite interesting."

Qin Shuai fell asleep unconsciously and lay on the table.

At night, Jiang Linda's phone called, and it turned out that she couldn't sleep, because she was reprimanded by the person in charge when she was doing cheerleading training this afternoon, saying that she always went outside to meet her boyfriend and do things badly.

At this moment, she was crying outside the dormitory, she rarely cried in front of people, but she shed tears before Qin Shuai.

Qin Shuai comforted her for a while, she finally regained her composure, and asked Qin Shuai why he didn't rest so late, Qin Shuai told her by the way that he caught an alien today, mixed in with the tank soldiers, and confiscated a silencer pistol from him.

Jiang Linda was very interested in the silencer pistol, because she had applied to the headquarters before, but the headquarters did not give it to her, but equipped her with two guns.

Linda: "...... Actually, I was particularly interested in silencer pistols, but the leaders who distributed weapons seemed to be a little stingy, and even the regiment commander did not have a silencer pistol, but Sergeant Zhou did, and some people thought it was a bit strange. Some people also said that they would get it because the leader who assigned the weapons was friends with Sergeant Major Zhou. ”

Qin Shuai: "It's a bit interesting, it turns out that the distribution of weapons still has to go through the relationship?" But I don't think it's that simple, just like the last time we saw Sergeant Zhou perform that special mission, is there any secret to hide? What we see is only a superficial phenomenon. ”

Linda said that thinking about it would give her a headache and asked him to tell him about the silent pistol.

Qin Shuai described it to her as if telling a story.

"A silent pistol has an attached sleeve on the outside of the barrel called a muffler. The muzzle grows out of the front half of the muffler, and its structure is varied. Some are made up of more than a dozen silencing bowls, and some are equipped with a tightly wound silencing wire mesh inside the barrel, and the high-pressure gas sprayed out from the muzzle enters the silencing wire mesh, and most of the energy is consumed by it on the spot. Some use rubber sealing at the front end of the barrel, and the warhead is shot out of the muzzle and through the rubber, and the rubber quickly shrinks to prevent the outflow of gas......"

"In other cases, a camera shutter-like mechanism is installed at the exit of the silencer, which automatically opens by the action of gunpowder gases and closes quickly after the bullet is discharged...... Due to the above-mentioned series of silence measures, the muzzle velocity of the bullet of the silent pistol is small, lower than the speed of sound, which avoids the whistling during flight, and the gunfire cannot be heard at a certain distance. ”