How to bind different types of weapons to a 2d character?

Question

Unity

I want the character to hold different weapons, but not to draw sprites all the time where the character holds guns, let's say I make 1 sprite of the character in a pose where he holds a weapon, and then add a sprite with a gun there,
Who doesn't understand, I have because I don't want to draw 100+++ sprites where the character is holding different weapons in the same position.