A professor's rebirth: I entered Tsinghua University in 1977.

"Xiao Liu, don't worry about all this clutter. Just focus on designing this new weapon... Oh, and where's that gun-mounted grenade you guys made? Let me see it..."

Commander Yu rubbed his hands with anticipation.

The 35 automatic grenade just now had already given him a great surprise, and he was even more looking forward to this gun-mounted grenade that he had been longing for.

Liu Hongyi personally presented the under-slung grenade launcher.

"Oh, it's 40mm, the caliber is a bit larger..."

When Commander Yu saw this caliber, he liked it very much.

As a soldier, there is no one who doesn’t like the “big pipe”.

Caliber is justice!

The two old generals looked at the "tube" repeatedly, and Liu Hongyi introduced the various parameters on the side.

"It looks pretty good, let's try firing a few shots!"

Commander Yu returned the launch tube to Liu Hongyi.

"Teacher, I'll try it myself this time."

Liu Hongyi is also a bit addicted.

He didn't try the 35 automatic grenade himself, mainly because the recoil of that thing was quite strong and he was afraid that his shoulder couldn't bear it.

This 40mm under-slung grenade adopts the high-low pressure firing principle, and its maximum range is only about 300 meters. The recoil is much lower than that of an automatic grenade, so there is no need to worry about it.

Tan Dexi hesitated for a moment and nodded.

During the first test two days ago, Liu Hongyi had tried it himself and proved that this weapon is safe.

Besides, it is an unwritten rule in this industry that you have to test the weapons you design yourself.

Soon, the big barrel was hung under the barrel of the 56 submachine gun.

This under-slung grenade adopts a spring-loaded design, which makes installation and disassembly very convenient.

In order to show the two leaders that adding an underslung grenade launcher would not affect the other functions of the gun, Liu Hongyi directly added a bayonet to the Type 56 assault rifle.

The magazine is also fully loaded with bullets.

Complete combat form!

Before arriving at the sandbag bunker, Liu Hongyi skillfully picked up a fragmentation grenade, aimed it at the rifling, and loaded it into the launcher.

Gun raised.

Ai Xiaoyu, who was far away, immediately covered her mouth nervously and looked at him with great worry.

Xiao Yawen was equally nervous.

Only Liu Chuan was beaming with joy.

He was a soldier by profession, and the display of these two new weapons also made him very excited and his blood boil.

Liu Hongyi pulled the trigger and there was a "bang" sound.

His body jolted back, and a 40mm fragmentation grenade was ejected, drawing an arc in the air that was almost visible to the naked eye, and landed more than 200 meters away, exploding with a loud bang and sending up a cloud of smoke.

The second time, Liu Hongyi adjusted the muzzle of the gun and aimed at the temporary fortifications made of sandbags. With another "bang", the grenade hit the fortifications accurately and exploded with a loud bang.

The third time, two gasoline barrels that were also filled with sand were blown up.

At present, the main type of under-slung grenade developed is a lethal bomb.

"it is good!"

Commander Yu and Commander Dong applauded and cheered.

Liu Hongyi then lay on the sandbag, put his shoulder on the butt of the gun, pulled the trigger, and fired a volley of bullets.

The gunshots were extremely crisp.

Finally, he raised the bayonet and made several stabbing movements.

Although Liu Hongyi's movements were a little clumsy and looked quite immature and funny in the hands of two veteran generals who had experienced many battles, what he wanted to show was not his combat skills, but that after adding the under-slung grenade launcher, the 56 submachine gun could still use other functions smoothly without causing much inconvenience.

"Okay, okay, this is incredible..."

While praising, Commander Yu walked out of the observation bunker and took the gun from Liu Hongyi.

It can be seen that the old general was also aroused by the passion for fighting and wanted to experience it himself.

"Xiao Liu, you're the teacher now. Can you teach me how to use this thing?"

The old general was laughing and in a very good mood.

"Chief..."

The guards and personal secretary immediately stepped forward to dissuade him.

This new weapon is still in the testing phase and has not passed acceptance, so the commander cannot be allowed to try it casually.

"Hey, what are you afraid of? Xiao Liu has just tried it, and it works very well."

"He's not even afraid of a student kid, but I'm an old man who's fought all my life, and I'm afraid of him. Don't make a fool of yourself... Go away, let me try it and have some fun!"

Since persuasion was ineffective, the guards and secretaries had no choice but to follow closely, nervously watching the old general's every move.

Under Liu Hongyi's guidance, the old general quickly understood the basic usage of this thing.

It was actually quite simple.

The difficulty lies in design and production, not in use.

The old general stepped confidently in front of the bunker, raised his Type 56 assault rifle, pulled the trigger, and with a "bang", a grenade flew out and hit the field fortifications with equal precision, sending earth and rocks flying everywhere.

The old general fired five shots in a row, then nodded repeatedly in satisfaction.

"Good boy, it's really good!"

"With this thing, my soldiers will be even more powerful. With a small cannon in hand, I wonder how they can fight me..."

As he said this, he glanced towards the south with a look of contempt.

The sensitivity of a veteran soldier who had fought many battles was different from that of an ordinary person. Although he lacked the memories brought by later generations, he could still tell by his "sense of smell" that the ungrateful wolf in the south was no longer able to hold back and was constantly provoking us. Sooner or later, we would have to teach them a lesson.

His troops belong to the Southern Military Region, and if a real war breaks out, they will definitely be the first to go.

The two new weapons developed by Tan Dexi and Liu Hongyi are really timely and very practical. As long as the entire army is equipped with them, the combat effectiveness of the troops will immediately soar to a new level.

Especially for the mobile operations of squads and platoons, with the support of these two "small cannons", they can completely form a local firepower advantage over the enemy in small-scale battles.

Even without artillery support, we can still defeat them.

The old general couldn't wait to let his troops find the monkeys to practice.

"Old Yu, don't just think about enjoying yourself, let me try too..."

Seeing that General Yu was fighting with great enthusiasm, Commander Dong could not help it and directly "grabbed" the weapon from General Yu's hand.

"Hahaha, Old Dong, I knew you couldn't help it. Let me tell you, this is really good stuff. This time, Old Tan and Xiao Liu have made great contributions to the army. After I return, I will immediately report to the military region and the military, and strive to have it put into service as soon as possible."

Commander Dong nodded repeatedly, took the grenade from Liu Hongyi, loaded it into the launch tube, and fired it at the target in the distance.

Afterwards, the two veteran generals personally tested the heavy mode of the 35mm grenade launcher.

With the strong support of the tripod, the recoil problem can be ignored.

The accompanying secretary and guards naturally stopped trying to stop him.

The two old generals sat directly on the ground and fired more than ten shots in a row. They were having so much fun that they shouted like children in excitement.

"Aunt Xiao, Liu Hongyi is really amazing..."

On the other side, Ai Xiaoyu had already thrown away all her worries. She held Xiao Yawen's hand and said excitedly.

Xiao Yawen smiled and touched her little head, his face full of doting.