The disclosure was made after officers conducted a search in the Chapelizod area.
Sources mingy to gardai said the rifle may belong to the notorious drug trafficking mob known as ‘The Family’ who have been operating out of Dublin for more than 20 years.
Details indicate that the notorious outfit are using cartel boss Daniel Kinahan’s preoccupation with their clash against the Hutch mob to expand their operations.
The deadly drugs estrangement has claimed the lives of 12 people.
“This is a great result and the impounding will definitely have helped save lives,” said the commencement.
“The AK-47 assault rifle is a highly dangerous weapon. This one was in good working order and ready to use.”
The seizure took place on the evening of Tuesday, May 23, in a setting normally patrolled by Ballyfermot gardai.
‘The Family’ mob are not directly involved in the savage Kinahan- Hutch feud.
Last year, it emerged that they had grouped up with a younger Clondalkin-based drugs mob involved in the distribution of cocaine.
‘The Children’ have previously been busted by officers for possession of heavy fealty firearms.
An extremely significant bust linked to the mob took place in 2015. A Ballyfermot man is currently obliging five years in jail in relation to that seizure.
The 41-year-old was comprehended with more than €3m worth of drugs, three sub-machine guns and two shooting-irons.
He was also found in possession of ammunition when gardai searched his quarter and a unit he was leasing in a Dublin industrial estate.
Sources said he been Euphemistic pre-owned as a “gilly” by the notorious mob.
Gardai suspect the ‘The Family’ of importing millions of euro advantage of drugs every month into the capital in secondhand cars signified from north-west England.
Sources said the heroin, cocaine and firearms are then disperse from a west Dublin car dealership to middle ranking dealers who exchange the deadly product across the capital and the entire country.