Zhang Yanhang skillfully ran behind the counter and pulled out an M4A1 carbine, then from another area, he unearthed ten STANAG magazines loaded with forty rounds each (NATO standard 5.56 x 45 mm caliber rifle magazines) and two Beta C-Mags filled with one hundred rounds.
These Beta C-Mags were nicknamed "glass drum magazines," where "glass" primarily referred to their appearance, consisting of two rounded compartments that together fed a standard interface in the middle, capable of holding fifty rounds each, totaling one hundred rounds.
The massive capacity of one hundred rounds allowed for an indulgent burst of firing, giving one the fantastical experience as if they had activated an "infinite ammo" cheat in the real world.
