CO2 Bomb

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A CO2 bomb (or commonly referred to as a cob) is a homemade weapon. It is created with a spent co2 canister commonly used in airsoft guns and pellet guns that is filled with any form of explosive, though gunpowder is by far the most common ingredient.It is commonly mistaken for a dry ice bomb but is completely different. They are usually thought of as being extremely dangerous due to the shrapnel they produce.