Senior police officers in Queensland could soon be armed with high-powered semi-automatic assault rifles to protect themselves against outlaw bikies.

Police Commissioner Ian Stewart says the service is considering giving some district duty officers permission to carry R4 .223 carbines with telescopic sights in their vehicles.

"That is one of the options that definitely we are looking at," Mr Stewart told News Corp.

"These are very, very high-powered weapons and they need to be handled very, very carefully by trained officers.

"We are looking at how we can best have them available should the need arise for an officer to have access to that type of level of weaponry."

The high-powered rifle is currently available to specialist units and police in isolated areas.

Police union president Ian Leavers has said officers believe the bikie crackdown has put them at increased risk.

AAP