A magazine of 30,000 rounds, you call it Hanyang

"Exchange 1200 for me first."

Zheng Kaixuan was overjoyed when he heard that this thing could be exchanged in bulk.

There are now a total of 1,200 people in the spearhead group under his command. No matter what, everyone must have one of these good things.

After consuming 90 ordinary Japanese soldier shoulder straps and 5 ordinary Japanese non-commissioned officer shoulder straps, solar optical sights were immediately obtained.

[Ding, friendly reminder, this optical sight is also compatible with various firearms such as machine guns and pistols.]

After the redemption, the system gave a friendly reminder.

In other words, even the light and heavy machine guns and Triumph pistols of the Sharp Knife Regiment can be equipped with this scope.

However, these are not compatible with rifles and need to be exchanged separately for scopes suitable for machine guns and pistols.

"Then we'll get another hundred optical sights for the Type 99 light machine gun and the Pheasant Neck heavy machine gun."

Zheng Kaixuan took out ten ordinary Japanese epaulettes and exchanged them for one hundred machine gun scopes.

As for the pistol, he has not exchanged it for the time being.

The pistol would be of little use in the ensuing battle, and every one of his epaulettes would have to be used where they were most needed.

With less than 300 epaulettes left, Zheng Kaixuan was obviously living a tight life and had to be frugal.

Next, Zheng Kaixuan took out his last remaining lieutenant colonel shoulder strap and continued to improve his strength.

"System, upgrade my Triumph Grenade Launcher to level 13."

In the regimental headquarters yard, next to the 13-level Hanyang fully automatic rifle tank, there was a 12-level self-propelled Triumph grenade launcher.

[Ding! Congratulations to the host, the level 13 Triumph Grenade has been successfully modified!]

A moment later, with a flash of white light, the self-propelled grenade launcher in front of him looked brand new!

Like the Tier 13 Triumph Mortar and the Tier 13 Hanyang Rifle Chariot, this weapon also replaced its wheels with tracks.

It also adds a 45-degree no-dead-angle protection function, front and top bulletproof glass, and mm thick uniform steel plates around it.

Zheng Kaixuan was mentally prepared for all this and did not feel any surprise.

[Ding, congratulations to the host for upgrading the Triumph Grenade Launcher to level 13. A new main quest has been opened for you.]

[Main Mission 5, Modified Bulletproof Helmet!]

"what!"

When Zheng Kaixuan heard that the system had actually opened the main task of the magic modified helmet, he could no longer sit still and jumped up excitedly.

Although the weapons of the spearhead regiment he led were much more advanced than those of the Japanese, the Japanese had almost several times more troops than them in every battle.

Although the spearhead regiment had a very low casualty ratio when fighting the Japanese, there were still casualties in every battle.

Every soldier is a heroic son or daughter defending the country and is the most lovely person.

If possible, Zheng Kaixuan does not want any of his brothers in the spearhead regiment to sacrifice.

He works hard to achieve this goal all the time.

How to improve the protection for the soldiers is a question he has been thinking about all the time.

Zheng Kaixuan has been waiting for too long for this main quest of the modified bulletproof helmet!

He had finally waited for this moment, how could he not be excited?

Zheng Kaixuan was as excited as a child weighing over 100 pounds. He turned around and ran quickly into the regiment warehouse. In a blink of an eye, he found a worn-out helmet that had been seized before.

This worn-out helmet was captured from the Japanese soldiers of the Sakata Regiment during the Battle of Heiyunkou.

Type 90 helmet, made of carbon steel.

This helmet is rubbish and offers virtually no protection against bullets.

Even the Japanese Type 14 Nambu pistol could be shot through by a direct shot at close range, not to mention the anti-rifle bullet.

There are hundreds of Type 90 helmets in Zheng Kaixuan's warehouse, and more than half of them have bullet holes on them.

The helmet in Zheng Kaixuan's hand had two bullet holes that were transparent.

These helmets are not bullet proof at all; their only function is to prevent damage to the soldier's brain from bomb fragments or debris thrown up by explosions.

Of course, if the bullet hits the helmet from the side, the helmet can also play a certain catapulting role.

"System, consume the Japanese epaulettes. I want to immediately modify them into a bulletproof helmet!"

Zheng Kaixuan was already getting impatient.

[Ding! Congratulations to the host. By using a Japanese Private's Shoulder Badge, I have magically modified the Type 90 Helmet into a Triumphant Level Helmet.]

[The Triumph Class 50 helmet is made entirely of titanium alloy, effectively protecting against 8mm rounds from the Japanese Type Nambu pistol at distances of meters...]

The titanium alloy helmet is heavy and has a very textured feel, but this is not what Zheng Kaixuan wants.

It can only block the pistol bullets from Wangba Box, which is not of much use to Zheng Kaixuan.

[Ding! The host consumes one of the Japanese soldier's shoulder badges...]

[Ding! The host consumes one of the Japanese corporal's shoulder badges...]

In the blink of an eye, this triumphal helmet was upgraded to level three.

[Triumph Level 15 bulletproof helmet, made of pure steel, can effectively protect against 9mm caliber pistol bullets from meters away...]

Zheng Kaixuan shook his head, still not satisfied.

"Continue to upgrade."

[Ding, the host consumes one of the Japanese corporal shoulder badges...]

[Ding, the host consumed a Japanese sergeant's shoulder patch, and the sixth-level triumphant helmet was successfully modified.]

[The Triumph Level VI bulletproof helmet, made of high-strength aluminum alloy and fiberglass, can effectively protect against ordinary grenade fragments...]

"It's not enough, continue to modify it."

[Ding, the level 7 Triumph bulletproof helmet has been modified successfully. Helmet materials: Boron carbide, chrome corundum...]

[The Level 6.5 Triumph bulletproof helmet can withstand indirect fire from common mm rifles, such as the Type rifle...]

[Ding, the Level 6.5 Triumph bulletproof helmet has been modified successfully. The Level helmet can withstand direct fire from a Type mm rifle bullet at a distance of meters...]

Even though the level 8 helmet could block the bullets from the Type 38 rifle, Zheng Kaixuan still did not stop.

He modified this Triumph helmet to level ten in one go!

[Ding! Congratulations to the host, the level 10 Triumph Helmet has been successfully modified!]

The Level 15 Triumph Helmet is made of aramid Kevlar fiber, special glass fiber, and nylon-reinforced high-strength specialty resin. It can withstand continuous fire from a 7.62mm fully automatic rifle at a distance of meters!

When Zheng Kaixuan heard that the level 10 helmet was made of aramid Kevlar material, his eyes suddenly lit up.

Because in the 21st century, bulletproof helmets made of materials such as aramid Kevlar are almost the highest standard.

This is a fiber material with super toughness. Aramid Kevlar fiber of the same thickness is five times stronger than steel wire!

The 7.62mm caliber fully automatic rifle is designed to rival the AK47, the king of infantry weapons in later generations!

In other words, the Level 15 Triumph bulletproof helmet is enough to withstand continuous and fierce shooting from a fully automatic rifle at an ultra-close distance of meters!