To any member that is considering using any firearm or any form of weapon in general as a photographic prop please do some research regarding the legality of ownership and usage of those items in your state of residence.
We have radically differing legislation between states in Australia as to what is considered a "real" firearm, a replica firearm, a controlled weapon and a prohibited weapon.
It appears that some items that are perfectly acceptable to be owned and used in some states have the potential to land you in jail in other states.
If you want to pose someone with firearms or weapons and publish the images on the 'net please make sure first that you and / or the subject posing with them has the appropriate license, permit or exemption to possess, carry or use those items.