Primitive Weapons (5e Variant Rule)
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Primitive weapons are made from bone, stone, obsidian, flint, wood and other pre-bronze-age materials. They are common in regions (or worlds) where metal is rare or non-existent.
They are not as durable as metal weapons, or tempered wood. They have a tendency to break, but such an imprecise strike can still lead to a wound.
When you roll to hit with a primitive weapon and the d20 roll is a 1, you can choose to treat it as a hit instead of a miss. This destroys the weapon.
List of Primitive Weapons
Primitive weapons use the same statistics as a weapon listed in the PHB, except they cost half as much. The following are examples.