Only when the [Yoyo Assault Rifle Production Line] materialized did its complexity become clear.
Machining, heat treatment, surface treatment, component assembly, final assembly, inspection, and testing areas were all arranged in modules.
Behind it stood a dedicated [Yo-Yo Bullet Production Line].
Getting the [Yoyo Assault Rifle Production Line] running was simple: add energy and units of metal, and it would produce rifles on its own.
The entire process was automated, with little need for human intervention.
It was every bit the kind of item one would expect from a Silver Civilization Chest.
As a mechanical engineer, Old Yao stared wide-eyed at the production line that had suddenly appeared before him.
Yu Yuan noticed his expression and said to Old Yao and Carmen, "Raise security around this assault rifle production line to the highest level and assign someone to guard it. The weapons it produces will be our core armaments from now on. We can't afford any mishaps."
Yu Yuan walked to the material intake area and loaded the supplies he had prepared: 500 units of steel, 100 units of brass, ten jin of propellant, and 50 units of ordinary Psionic Ore.
He started the machine. An operating interface immediately appeared on the control panel, offering several assault rifle production options. The differences came mainly from the materials supplied.
The magazine material, barrel material, and other components could vary, and each variation would affect how the firearm handled.
Even among Excellent Grade firearms, some were stronger than others. More materials and higher-quality materials could change a gun's power.
Yu Yuan chose the most basic and simplest production plan.
Once he confirmed it, the entire line gave a low hum. Indicator lights came on, and the machinery started running.
Old Yao had already moved up to the production line. He watched the