What type of flashbang is referred to as a 1-bang?

The M-84 flashbang is referred to as a "1-bang" because it is designed to produce a single, intense flash of light and a loud bang that disorients individuals in the vicinity without causing significant physical harm. This type of device is commonly used in tactical situations by law enforcement and military personnel to gain a tactical advantage over adversaries by stunning them momentarily. The M-84 is known for its effectiveness in close quarters where the primary goal is to temporarily incapacitate a target or adversary during operations such as room clearing or hostage rescue.

In contrast, the other options refer to different types of munitions or equipment that do not fall under the category of a "1-bang" flashbang device. The M-16 refers to a specific type of rifle, while the M-203 is an under-barrel grenade launcher typically used with rifles. The M-4 is another type of carbine, not a flashbang. Each of these serves a distinct purpose different from that of a flashbang like the M-84.