Cannabis was found in the raids, along with heroin, cocaine and speed
Thirty eight people have been arrested following a three-week clampdown on drugs in the Gwent Police force area.
Cannabis, cocaine, heroin and speed were seized during 61 raids, along with three firearms, a samurai sword and a cross bow.
A cannabis factory containing more than 200 plants - with a street value of around £100,000 - was also uncovered.
Det Chief Insp Tony Maher said the operation sent a strong message to those who supply drugs.
"As a result of this initiative we've stopped more than £100,000 worth of drugs from getting on to the streets," he said.
"Although we have made some significant findings in terms of drugs recovered, what is also of big importance is the amount of intelligence we recover from such initiatives.
"This helps us in terms of identifying others involved in criminal activity and planning operations in the future."
He added: "We also made some significant cash seizures, where we take money we believe has been gained as a result of criminal activity."
During the crackdown, leaflets were distributed to houses in streets where raids were taking place.
They advised residents how they can pass on information about those involved in illegal drugs and how to get medical help if they are using drugs themselves or know someone who is.
If anyone has any information about those involved in drugs, they can contact Gwent Police on 01633 838111 or anonymously via Crimestoppers on 0800 555 111.