Swimmers Nick D'Arcy and Kenrick Monk have apologised after photos of them posing with guns landed them in trouble.
D'Arcy and Monk posed with the weapons in a gun shop in the US where the Australian swimming team had been training and competing before the Olympics start next month.
D'Arcy, who described the shooting experience as "pretty fantastic, apologised for causing any offence.
"We got the opportunity to fire a couple of guns which was pretty fantastic to be honest because we don't get that opportunity back home," D'Arcy told reporters at Brisbane Airport after the pair returned to Australia on Friday.
"It was all just meant to be a bit of fun, the photos were just a bit of fun.