Controversial Queensland MP George Christensen has been reported to police after posing with a handgun on social media.

On Saturday, Mr Christensen posted a photo of himself aiming a gun on Facebook along with a post saying, "You gotta ask yourself, do you feel lucky, greenie punks?"

After a flood of critical comments, he amended the words accompanying the picture to say: "You gotta ask yourself, do you have a sense of humour, greenie punks? Obviously not." He eventually deleted his post.

Mr Christensen's Facebook post. Credit:Facebook

The post comes just days after 17 people were killed at a shooting in a high school in the US.