On the other side, Hainer and Penny also dismantled Lin Wen's MK17 rifle entirely, and then carefully studied the principle of this gun.

I don't know if I don't see it, and I'm shocked when I see it. Originally, they thought that this weapon could fire in bursts, probably using some kind of magic array or something, but they found that this weapon had nothing to do with magic, and the reason why it could fire in bursts was unexpectedly simple - a hole was made in the barrel, and the gas generated during firing pushed the piston through the small hole, so as to carry out a series of actions of unshelling and reloading.

"Why didn't we think of that?" Heina scratched her hair and looked at Penny and said.

"So you're only the second-best engineer in Shattered Mine, and you can only make things like the Hotline Gun." Penny said as a matter of course.

Heiner: "......"

"It's a very good weapon, but unfortunately, it's not for us gnomes." Reloading the gun and returning it to Lin Wen, Haina sighed and said, because of his height and weight, MK17 is about the same height as Haina when it is erected. And the dwarf weighs too little to stabilize the recoil when shooting.

……

The outgoing team came back one by one, and at the same time brought the not-so-good news - although most of the cavemen in the crushed mining city had been wiped out, the holes that had been dug through the mining area were still there, and a team that had passed through the caves saw many cavemen climbing up from the holes.

If this hole is not filled, it will be useless to kill many cavemen, who can send a large number of cavemen from their hometown to invade Shattered Mine City at any time.

What's more, this hole is not simply sealed, it is better to blow up the entire underground network, but it is unknown whether it will collapse the mountain in that case.

This situation is like an ant nest in the house, you can cure it, it may destroy the foundation of the house, and if you don't treat it, you will crawl everywhere every day to respond to you. Not to mention that these "ants" still eat people.

"That's good." Lin Wen thought about it, and then formulated a more secure way to deal with it, "Team 1-5 guards the entrance of the cave, and the rest of the team patrols the city, eliminating every caveman and petrified monitor lizard hiding in the crushed city, and when the city is cleared, we will discuss what to do next." ”

There was no objection to Lin Wen's proposal, and with Kalashnikov's protection, these cavemen were merely targets for movement.

But Lin Wen didn't stay at the entrance of the cave with his teammates, because Lin Wen had more important things to do at this time.

Since it is impossible to simply blow up the cave, then it is better to kill all the cavemen in the cave, and in view of this purpose, Lin Wen has to make some heavy weapons that are enough to deal with the big scene.

The M134, with a rate of fire of 6,000 rounds per minute, was Lin Wen's choice.

The ammunition used in the M134 is 7.62x51mm full-power bullets, which are the same ammunition as the MK17 in Lin Wen's hand and the AK12 in the hands of other mercenaries, which can be used interchangeably to facilitate logistics.

After deciding on the choice, Lin Wen went to Haina to ask for some Mithril and Thorium ingots, as well as a large number of copper ingots and steel ingots.

First of all, the barrel is made of hard Thorsilver and wrapped with a layer of tough mythril, this composite barrel is more durable than the average single material barrel, and when the six barrels are completed, there are six bolt parts, and six movable bolt tracks.

Don't look at the strange appearance of the M134, but its working principle is no different from that of ordinary firearms, and its operating principle can be imagined as six guns in turn into the chamber, locking, firing, rejecting, throwing the shell, and so on. But to make the gun work, a drive motor is needed.

However, the motor is not a problem, there are ready-made ones in the Crusher City, there is a kind of little thing named by the gnomes that is very similar to the motor on the earth, using the crystal source battery for energy, a level 30 emerald crystal source battery can make it rotate at full power for a full seven days. Moreover, it can also adjust its power and obtain different rates of fire.

Then there is the off-chain runner, which is an important part, this part has two main uses - one is to make the bullet accurately enter the rotating body (the part composed of six bolts) inside the gun from the ammunition feeder and place it in the shell hook, and the other is to make the bullet case out of the rotating body after the bullet is fired to complete the shell throwing action.

Lin Wen fixed the six barrels with the barrel blessing parts to form an equilateral hexagon, and then connected them with the bolt, then installed the drive motor and the drag chain runner, and finally installed the shell, and then improved some details, and an M134 rotary tube machine gun was ready.

Finally, there is the ammunition supply part, Lin Wen found an 8-compartment space backpack as a bullet supply box, installed a hook on the back of the backpack, installed a guide rail on the backpack mouth, and a dashboard to show how many bullets are left in the space bag.

"Tsk, what a primitive look." Looking at the weird style ammo pack, Lin Wen smacked his lips, and then began to make bullet chains. This time, the bullet is the legendary deflagration three-in-one machine gun bullet, which meets all needs at once. The bullets used in the M134 are strung together with a V-shaped loose chain, which is composed of V-shaped metal parts, and the top and low ends of the V are vertical rings, and the bullets can be connected together to form a chain after passing through the ring.

Each compartment of the space backpack can hold 2,000 rounds of bullet chains, a total of 8 squares, which means that a total of 16,000 bullets can be carried at a time in a space backpack that is the size of a palm. Lin Wen bet that the space backpack that is everywhere in this world is definitely an artifact that the army on Earth dreams of having.

Bite! Comprehension formula: M134 multi-barreled machine gun.

In order to make this weapon, Lin Wen didn't even eat and worked for a whole day and night, looking at the hint in his left eye that was gradually dimming, Lin Wen rubbed his dark circles, and then stretched his waist, and let out a series of crackling sounds up and down his body.

Now that the weapon is ready, let's try it to see if it works. So Lin Wen didn't care about resting, holding the bracket in his left hand and leaving the laboratory with M134 in his right hand.

"Hey, Carré, I haven't seen you in the past two days, what are you up to?" As soon as I went out, I ran into Lucia, the little fox.

"Prepare for the next mission." Lin Wen raised the M134 in his hand and shook it in front of Lucia.

"What is this? A new kind of gun? Why is it so big? And six pipes? Looking at the "huge" weapon in Lin Wen's hand, Lucia asked suspiciously, "Multi-barreled weapons have been proven to be of little help in combat in the engineering community many years ago, don't you know?" ”

"It's because they didn't find the right way." Although he has only been in this world for a few months, Lin Wen has also learned about the development history of this world. Decades ago, a dwarven engineer suspected the slow rate of fire of bolt-action rifles, so he made a strange gun made of nine barrels and named it the honeycomb rifle, because the gun looked like a honeycomb from the muzzle, but after experimenting, the dwarf eventually abandoned the weapon.

Although a single trigger can shoot (9) rounds of bullets, which can knock the enemy into a honeycomb at once, each barrel must be loaded independently and the bolt is pulled, and its rate of fire is not as fast as that of a normal rifle.