Chapter 602: Chapter 508: A True Friend is Hard to Find_2

```

"Sub-caliber armor-piercing discarding sabot, high chamber pressure, high initial velocity! Firing a tungsten core armor-piercing bullet should do the trick," Norberto muttered to himself. After finishing his soliloquy, he turned his head to look at Gao Guang and said fiercely, "If that's still not enough, we'll use a smoothbore barrel to increase the initial velocity to the max, firing long-rod armor-piercing bullets to penetrate heavy-duty bulletproof vests with no problem! No bulletproof mask will be of use!"

The solution Norberto provided was simple, like putting a tank gun, shrunken down countless times, onto a handgun. That was roughly the idea.