It was still the hardware grocery store on the second floor. After Jiang Cheng entered, he did not waste time and directly asked the system.
"System, I want to modify this indirect nail gun again. Is there any good plan?”
"Ding! There were three ways to modify the indirect nail gun, and each method required different materials and points.”
The system's voice immediately sounded and replied.
There were actually three types of second modifications?
Jiang Cheng was slightly surprised. After all, the first modification only had two types. He immediately asked,"Which three are they?"
"Ding! They were the direct nail gun, the intermediate version of the indirect nail gun, and the heavy indirect nail gun.”
"The first type is a nail gun powered by gunpowder. Its effective range is 30 meters. What's the difference between the second and third types?”
"Ding! Intermediate version of the indirect nail gun, powered by a stronger compressed air. Its effective range is 40 meters. It has the power to penetrate an 8 mm thick iron plate within 10 meters. It can be loaded with 20 nails. It requires 6 materials and 100 points!”
"Heavy-duty indirect nail gun, powered by triple super compressed air. Its effective range is 150 meters. It has the power to pierce through an 8 mm thick iron plate within 80 meters. It can be loaded with five steel nails at a time.”
the system introduced.
" This intermediate version of the indirect nail gun is slightly more powerful than the direct nail gun. It also requires 20 points more than the direct nail gun. As for this heavy indirect nail gun…"
Jiang Cheng looked at the heavy indirect nail gun introduced by the system." The effective range is 150 meters, and it can only hold five steel nails at a time. This is about the same as a light sniper rifle.”
Needless to say, this thing was very useful to him. The evolved zombie that had its head blown off on television last night was still fresh in his mind.
With it, he would have a way to deal with the evolved zombies in the future!
"In that case, we have to make another indirect nail gun.”
Fortunately, the materials required for the modification of the indirect nail gun were not difficult to find. Other than an indirect nail gun, the other five materials were very common. They were a compressed air valve, two catties of pig iron, two bottles of air jet cans, ten centimeters of copper wire, and twenty iron nails.
The last time he was looking for materials to modify the indirect nail gun, he had already walked around the hardware section several times. He could roughly remember the location of most of the materials, but it took him some effort to find the compressed air valve.
As for the materials for the heavy-duty indirect nail gun, other than an indirect nail gun, the remaining seven materials were a compressed air valve, three catties of steel, three bottles of jet cans, a steel pipe with a diameter of one centimeter and a length of 60 centimeters, five steel nails, four magnifying glasses, and a piece of wood.
They were also not difficult to find materials. Other than wood, which he had to go to the furniture store to find, the rest could be found in the hardware and miscellaneous goods section. When he was looking for materials for the indirect nail gun, he took them together.
When all the materials were gathered, Jiang Cheng immediately spent 100 points and chose the mid-sized version of the indirect nail gun. He modified and upgraded the indirect nail gun in his hand.
Then, he spent another 10 points to modify an ordinary nail gun into an indirect nail gun to meet the upgrade requirements of the heavy indirect nail gun.
It didn't take much time to finish modifying the two nail guns. It only took ten minutes in total.
At this moment, all the materials on the ground had disappeared, replaced by two brand new nail guns.
One looked smaller than before, and the other looked bigger and longer than before.
Jiang Cheng first picked up the small, medium-sized indirect nail gun.
It was much smaller than the original one. It was now only a little bigger than a palm. Its appearance was very similar to a pistol. The difference was that at the hammer, there were two five-centimeter square gas cans that were placed side by side. There was also a small pull pin below it to pump air.
"The jet pipe, which was originally five centimeters in diameter and at least twenty centimeters long, has actually become so small. However, the feel has improved a lot, and the appearance is not as rough as before.”
After playing with it for a while, Jiang Cheng nodded.
"Let's see how powerful it is."
As he spoke, Jiang Cheng opened the safety of the nail gun, raised his hand, and pulled the trigger at a shelf.
Bang!
Puff!
The sound of a gunshot and the sound of metal being penetrated rang out at the same time.
Jiang Cheng turned off the safety and walked towards the shelf he was aiming at, wanting to see where the nail finally hit.
In the end, when he passed three shelves in a row, he only saw a small hole left behind by a nail. There was no trace of the nail!
Although the iron sheet of the shelves was not thick, each shelf had two layers, and each shelf was separated by two meters!
This nail actually passed through three shelves in a row. It was only until the fourth shelf that Jiang Cheng found the nail!
This power was not small!
"Maybe it has something to do with the proximity!”
Jiang Cheng smiled in satisfaction and immediately put away the medium-sized indirect nail gun.
As for the heavy-duty indirect nail gun, it was just as he had guessed. It was indeed a light sniper rifle, and its appearance was very similar to an SKS. The only difference was that the hammer was a square-shaped jet can with three characters pressed together.
Picking it up, Jiang Cheng suddenly felt a sense of familiarity." It seems that the advanced comprehensive close combat technique also includes some use of light sniping."”
The nail gun was too powerful. In order to avoid disturbing the zombies outside the supermarket, Jiang Cheng did not test its actual power.
He turned around and found two larger bags and put it in them. Then, he searched the metal nails in the hardware section and emptied them all into the bag.
"It's not full yet. Go find a few more knives.”
As he spoke, he went to find a few sharp watermelon knives and put them into his handbag.
"It's about time. Put it in the car first and go back to the fifth floor to eat something. If you don't go back now, Liu Yuqing will probably get anxious.”
Jiang Cheng carried two bags to the toilet window and asked Jarvis to open the sunroof of the armored car. He jumped down from the second floor and went to the roof of the car. He placed two bags of nails and steel nails into the armored car.
When he returned to the fifth floor, he was greeted by a fragrance before he even got close to the restaurant.
This book comes from：m.funovel.com。