Perhaps it was Otani and others gathering in the store that caused passers-by outside the window to see the excitement in the store. At night, some passers-by nearby chose to come in for a drink.
Although there are not many guests, it is a good start.
As it approached twelve o'clock, the guests in the store had already left clean. Counting that the closing time was not far away, Ye Qing simply closed the store door. After cleaning up the sanitation in the store with Lili, he drove him back to the school dormitory.
The Silver Eagle Federation at night is far less secure than in China, and Ye Qing doesn't want any accidents to his employees. Especially Riley's practical and hard work, which is different from most blacks, and the healing smile on her mouth. In Ye Qing's view, it is undoubtedly his luck to be able to recruit such an employee.
After returning to the store, Ye Qing hurriedly washed and lay on the bed, while the spirit entered the virtual training ground to continue her study. Even though the outside body was extremely troubled, Ye Qing's spirit returned to fullness the moment he entered the virtual training ground.
Until ten hours later, when he felt obvious fatigue in the training field, Ye Qing quit the training field and went directly to deep sleep.
Early the next morning, Ye Qing did not directly open the store door when he woke up, but lay in bed and recalled what he had learned last night. Thanks to the efficient and compulsory teaching brought by the system, Ye Qing's learning progress is fast.
In terms of the appearance modification of firearms, most of the raw material processing Ye Qing has been able to get started. In terms of the principle of gun automation, Ye Qing also understood the difference between those pistons with short strokes and long strokes.
In general, the automatic principle of firearms is mainly divided into four categories. Namely, barrel rear seat type, bolt rear seat type, air guide type and hybrid type.
In the development of world firearms history, the manual machine gun invented by the Belgian Vachan in 1851 is undoubtedly the originator of automatic weapons. The rate of fire of 330 rounds per minute that year shocked the world.
A number that seems to be a coincidence, 33 years later, that is, 1884. The famous Maxim heavy machine gun came out. Thereafter, in 1892, Austria took the lead in developing the 8mm Schönberg pistol, which was also the world's first automatic pistol.
The automation of pistols and machine guns is much earlier than that of rifles, and what is used in this is the barrel rear seat technology.
To put it simply, the automatic method that uses the gunpowder gas pressure in the barrel to make the movable parts and the barrel of the gun recoil together and complete the automatic action is the barrel recoil type.
And here, Ye Qing focused on learning only the short-barrel rear seat style. Because of the other branch, the long barrel rear seat, has been abandoned by the times. However, the reliability of the short-barrel recoil type firearm, the smaller recoil, the higher shooting accuracy, and the theoretically high rate of fire are still reserved.
The very famous 1911 style pistol uses this structure.
The so-called short-stroke and long-stroke pistons that have been seen before belong to the air-guided category. And this automatic method is more used for modern firearms, and it is also the main focus of Ye Qing's study.
Looking back at this knowledge, Ye Qing couldn't help but think of the AR-15 that was redeemed from the system. The exaggerated performance has always made Ye Qing worry.
Looking at the time on the watch, it was still an hour before the door opened. Ye Qing couldn't help being curious anymore, got up and went downstairs to find the gun bag with AR-15, and opened it in his room.
Remove the magazine, open the upper cover, lower the butt, and then take out the return spring and the eye protection outside the barrel, and finally pull out the barrel and the movable parts inside the barrel.
Combined with the knowledge taught by the system, Ye Qing is not difficult to recognize. There is no obvious difference in the automation structure of this AR-15. The extremely long air chamber extending from the side of the barrel and the piston stroke almost synchronized with the moving track of the gun all show that this gun is still a piston long-stroke rifle.
Even the locking mechanism,
Both are no different from the original roller lock designed by Old Stoner. So the question is, why is the performance of the gun produced by this system so much higher? As the saying goes, I don't talk with strange power, even though I live a system that is very illusory. But after several months of getting along with the system, Ye Qing also gradually understood. This system will not be opened to oneself for no reason, in other words, the rewards or the help it provides to oneself are all purposeful, and one has to pay a certain price.
It seems that the performance of the guns produced by the system has improved dramatically. The guns purchased in his shop are still unremarkable. If the system improves its performance in a way that I don't understand at all, then it makes no sense that other guns in the shop do not enjoy this.
Thinking of this, Ye Qing went downstairs again, and found a handful of AR-15 produced by Colt in the warehouse. After opening the box, first wash off the gun oil, and then disassemble the gun step by step. At the same time, it is compared with the AR-15 produced by the system on the same desktop.
One gun is up, one gun is down. Such an intuitive comparison, coupled with Ye Qing's method of disassembling one component and comparing each component, quickly found the difference between the two.
AR-15 produced by the system has one more component!
Seeing a small funnel-like part placed on the tabletop, Ye Qing frowned and fell into thought again.
Needless to say, Colt's AR-15 has nothing suspicious about the direct-blown air-guiding structure. After all, this old gun of the last century has already passed the property protection period. You can find the design structure diagram of this gun by just searching the Internet. UU Reading www.uukanshu.com This component will definitely not be on the original AR-15.
After clarifying this idea, Ye Qing continued to recall the process of dismantling the system version of AR-15 in his mind. After about three minutes, Ye Qing finally thought of it.
"Add a funnel to the air duct?"
Ye Qing muttered suspiciously. The gas force generated by the gunpowder explosion in the barrel is not small. At this time, if such a funnel-shaped thing is added, will it cause excessive pressure on the inner wall of the barrel and risk of explosion?
While pondering, Ye Qing installed his rifle. Yeah! Material!
After installing the rifle, Ye Qing remembered another point of the AR-15 system version that was almost ignored by him, and that was the weight issue. For the normal AR-15 cover, the position of the gun body uses a lot of aviation aluminum. This material is not heavy originally, and the system version of AR-15 feels the same material, but the weight is much lighter.
Thinking of this, Ye Qing also understood the difference between the two. One is the structural change, and the other is the application of new materials. But if you want to achieve the first point, you must make a breakthrough in the second point, which is the material. Otherwise, adding a gas-gathering component to the air guiding chamber suddenly will only backfire.
In this way, it can be inferred that the hardness and toughness of the material used in the system gun must be higher than that of general aviation aluminum. So, is it another business opportunity?
No, there should be another course. Material science, and here you need to learn chemistry...
Ye Qing suddenly doubted life...
This system might have to be renamed Xueba System. Except for the money collected at the beginning, it seems to have been studying inside. A good plug-in life, the result is just a high-tech cram school...
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