SENIOR police said the eight-month investigation, code-named Strike Force Radius, was protracted and one of the "biggest ever" in Oxley.
"It stems from persons from Melbourne right through to Tamworth right into the Central Coast, and Sydney," Oxley Detective Acting Inspector Jason Darcy said.
Police will allege throughout the operation, 1.5kg of ice was supplied along with fentanyl patches, heroin and cannabis; and eight guns including shortened and pistols had been sized, along with 450g of ice as well as two stun devices.
"It's a significant amount which was aimed to go on the streets of Tamworth, but not just Tamworth, but Gunnedah and Narrabri," Detective Darcy said.
Eight men and women have been charged with more than 100 drug and firearm offences. Six of those have fronted court but have not been required to enter pleas, while two women have already denied the drug supply allegations against them.
On Thursday night, a ninth was charged with drug supply and participating in a criminal group after being questioned by detectives at Tamworth Police Station.
He was refused bail to front Tamworth Local Court on Friday.
Oxley Acting Superintendent Kylie Endemi said Strike Force Radius was sparked after tip-offs from the community and she warned more arrests were to come.
"It is of particular concern to us that an illicit business, known as the ice castle, has been operating in our community," she said.
"Our efforts though have completely dismantled that destructive network and we have removed illegal firearms and prohibited drugs from our street."
She praised the dogged team of officers behind the sting and said their tireless work had seen drugs, illegal firearms and stolen goods seized from Tamworth streets.
"Ice is renowned for tearing communities apart and we will be relentless in chasing down those who want to participate in that kind of activity in this community," Acting Superintendent Endemi said.
"We will identify them, we will investigate them and we will bring them before the court."