Some of the 170-plus guns stolen during an "extremely well organised" burglary in 2017 have been found, police have confirmed for the first time.

WAtoday can reveal several of the guns stolen from Barry and Sons Firearms in Beckenham in March 2017 have been recovered within WA, and also outside the state.

Some of the guns that were stolen. Credit:WA Police

Police have not revealed the exact number of guns found and where exactly they were located.

But WAtoday understands some of the guns were found in as many as three states besides WA.