Police figures show 2399 people were charged with 4542 firearm-related offences, nearly double that of a decade earlier.
In total, 1862 firearms were seized under sections 6 or 18 of the Search and Surveillance Act, more than double the 860 that were seized a decade earlier.
ACT MP Nicole McKee said the government had made the wrong moves when it came to firearms reform since the 15 March attack.
“What we’re looking at is a piece of rushed legislation, or two pieces of rushed legislation, that went through so fast that the unintended consequences of doing that are starting to be realised, and of course the effects that we’re seeing are a less safer community.”