POLICE are investigating the theft of 20 inert military firearms stolen from an RSL south of Brisbane.

CCTV footage released today by police show the break in that occurred at Beenleigh RSL in Mount Warren Park last Thursday.

media_camera The four masked men can be seen smashing the front door to gain entry to the RSL.

In the footage, four men can be seen smashing the front glass door panel to the premises on Bardyn Halliday Dr about 2.10am.

Once inside the men removed firearms from a display cabinet and loaded them into a Mazda 6 sedan outside the premises.

Police are keen to speak to anyone who might have any information about the theft, the weapons stolen or might have seen anything suspicious in the area around the time of the incident.

If you have any information, contact Policelink on 131 444.

Beenleigh RSL has been contacted for comment.