Police are also appealing for help to end a turf war targeting the Rebels just north of the Gold Coast.
It comes after Logan properties with links to the Rebels were shot up in February and March.
Three men and a woman have been arrested after raids were carried out by Taskforce Maxima and South Brisbane District Detectives in Logan and Coomera on March 30.
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During the search of the dwelling at Marsden detectives located a loaded glock handgun and a pistol and quantities of drugs, including 200 MDMA pills.
A 39-year-old man was charged with one count of fail to comply with direction.
A 20-year-old man was charged with two counts of possess dangerous drugs, and one count each of supply dangerous drugs, possess anything used in commission of a crime, possess tainted property and possess drug utensils.
A 20-year-old woman was charged with one count of possess tainted property.
A 52-year-old man was charged with one count each of possess dangerous drugs, possess anything used in commission of a crime and possess drug utensil. All were due to appear in the Beenleigh Magistrates Court on May 17.
Investigations are ongoing in relation to the located handguns and the shooting incidents and police are now seeking assistance from the public.
“We are hoping to speak to anyone who may have information relating to these matters.
“The seizure of firearms and dangerous drugs from OMCG and organised crime gangs remain a high priority of the QPS and Taskforce Maxima,” Detective Superintendent Niland stated.
“There is a cost and risk being associated to crime gangs. You will continue to be relentlessly targeted by law enforcement. Organised crime gangs have no part to play in our community,” he stated.