They will appear in court tomorrow.
A 37-year-old Wanora man was also arrested and charged with weapon possession.
He will face court on July 29.
South-Eastern Police regional crime coordinator Detective Superintendent Brendan Smith said today's action was a significant step towards dismantling alleged organised crime.
"These arrests have decimated a whole chapter of the Mongols OMCG," Detective Superintendent Smith said.
Bowden was shot dead at his home last year.(9News)
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