"Sure enough, it doesn't work, even if you combine such delicate things, you can't use them." Vertex "." Ｘ『Ｓ⒉②”

Lao Chen casually put aside the smartphone he had just made, and the sub-professional level was not reached, and the things he made had no shape, but no meaning, and it was no different from a piece of scrap metal.

"Lao Chen, these are all expected, after all, the sub-professional level is too low, how about making something simple?"

Fang Zhengguo took out a crossbow from the space, it was really a weapon researched in the laboratory before, but it had reached a bottleneck, and it could no longer be improved without mixing other elements.

"This bow and crossbow is a bit interesting, it turns out to be a pure mechanism, there is no trace of magic, this may be able to have some effect."

Lao Chen took the crossbow and observed it carefully, he didn't know much about the pure mechanism, but the mechanism itself is a basic machine, as long as he takes some time to study and combine it with his own knowledge, maybe he can have unexpected gains.

"It may take a little time to improve, but assembly line production is not a big problem, just make an assembly line."

After observing for a long time, and then using his sub-profession to try, he can already determine the feasibility of assembly line production, but at present, the assembly line he can make is not large, and he can only make one.

"Although it won't be of much use now, it will definitely be strengthened when the sub-class level increases."

A small assembly line with low efficiency is really a drop in the bucket, and it can't even make a splash in the big force of the military department, but Fang Zhengguo still patted Lao Chen's shoulder and comforted.

"Wait, you're looking for an original bow and crossbow, I need to look into it."

Lao Chen unceremoniously called Fang Zhengguo, and by observing this bow and crossbow, he had a new idea, maybe he could give it a try.

"Sure enough, sure enough, that's worthy of earth technology."

When Fang Zhengguo came to Lao Chen's laboratory again the next day, the bow and crossbow were placed everywhere, and Lao Chen was dancing there like a nerve.

"It's been a long time since I've seen this, and I'm really nostalgic."

Fang Zhengguo didn't go up to disturb, but waited for Lao Chen to calm down before he walked over and looked at the smaller hand crossbow in Lao Chen's hand.

"Haha, Lao Fang, come and take a look at this, my latest masterpiece, even the archer crossbow three!"

Lao Chen handed the crossbow to Fang Zhengguo, and it can be seen from the name that this crossbow has broken through the limitations of the original bow and crossbow and has been changed to a burst type.

"I've been thinking about what the characteristics of our earth's technology are, and I've come to the conclusion that the conditions of use are simple, and even very weak creatures can defeat particularly powerful monsters when used."

"And this Repeater Crossbow No. 3 is modified from the bow crossbow, not only has the power not decreased at all, but the weight and volume have decreased a lot, and the requirements for the user's strength are not so high."

Lao Chen introduced himself very proudly, and now everyone has been strengthened by the Heavenly Pillar, so they can't feel it, the bow and crossbow require a lot of strength when used, whether it is when carrying or when loading crossbow arrows, and it can only shoot one at a time.

"It's very good, it may not matter if you save that little effort, but it is also possible to save yourself at a critical time, and it is not so easy to attract attention after becoming smaller, not to mention that there are three in a row, few people are wary of this now, and monsters and natives are very rare in this attack mode."

Fang Zhengguo tried to shoot a few times, and praised, the most shopping thing is that this kind of hand crossbow does not have any conditions for use, as long as it can be used by creatures that can pull the trigger, and even creatures can be used, and the previous transformation can only be used by the Chosen One The bow and crossbow can only be used by the Chosen One is too much improved.

"It's too early to be surprised if it's just like this, this crossbow is already a more complex mechanism, it can be stacked and hidden in the arm when not in use, and it doesn't count any equipment position, and you can use the quiver box prepared in advance when you reload, as long as you pull this quiver box will automatically fall, and then put a new one in, and then pull it again, and complete the reload, the same as the pistol."

Lao Chen took the crossbow back, folded the two sides together, and used the plastic strap that came with the crossbow to stick and fix it on his arm, which was only the length of two or three mobile phones, which did not affect the battle much.

When in use, as long as the mechanism is activated, it will bounce off immediately, and shoot a crossbow arrow, and it will not take unnecessary time to open it and cause the fighter to be lost.

"I didn't expect the design to be so good, it's a pity that the power is insufficient, but now the pistol can't be used to have this effect is very powerful, especially this stacking and reloading, which can not only surprise, but also increase endurance."

Fang Zhengguo liked the crossbow designed by Lao Chen very much, but he did not expose Lao Chen's existing ideas at present, so he used the name of the original research institute to make some configurations for the elite troops in the small assembly line made by Lao Chen.

"There is also a special quiver box used with this hand crossbow, and the power is also not to be expected, it can only be said that it is used in special situations and has some special effects."

After saying the hand crossbow, Lao Chen pulled Fang Zhengguo aside and took out a few arrow boxes, the arrow boxes and the arrows inside were matched, but they could be used in each hand crossbow.

"Since the crossbow arrows are relatively large, there is a lot of room for modification when making them."

Lao Chen is holding an arrow box, there is only a special arrow in it, this [hook arrow] can activate the mechanism when it is rebounded by external forces, and instantly pop out the hook spur to expand, and there are special alloy wires connected to it, which is enough to withstand the continuous pulling of ten elephants.

"It's kind of interesting, it's very useful whether it's for chasing down enemies and trapping them, or for climbing."

Fang Zhengguo nodded, but unfortunately the shortcomings were the same as before, and he could only deal with some creatures that were not very powerful, but they were really useful in some situations.

"And this one, this one is particularly interesting, it's called [Smoke Crossbow Arrow], which can not only blast smoke from the shot crossbow arrows, but also the Quiver Box itself can also emit smoke, which is especially effective against stealth enemies."

Lao Chen introduced another crossbow arrow, this crossbow arrow will also die from the previous principle, but the smoke is not big and does not last, it is not very suitable for hiding and retreating, but it is indeed a very good preparation to hinder the advance and stealth enemy.

Moreover, the mechanism of the quiver box itself makes up for the shortcomings of poor use when escaping, and this quiver can be used directly as a smoke grenade, which is very convenient.

"By the way, smoke bombs, I also tried to make a few, although they are not as good as the modern smoke bombs on Earth, but they can barely be used." (To be continued.) )