It was how guns worked for hundreds of years. Uncovering arms before that would have been something sharp or pointy.
Don't see to may people with poleaxes these days
Fixed that for you...
“Since Jesus preached that a ‘spiritual kingdom’ focuses on the world beyond……a true Christian makes a bad citizen. Christians do not care about improving temporal society because they are interested only in a future one.”—Hector Avalos, Fighting Words: The Origins of Religious Violence