Swing out and make a half turn at the front end. At the platform, bring your legs up and hook them over the bar. Keep the other leg straight and tip your head back to look for the catcher. Keep holding the bar until the front end when you make a half twist and take the catcher's wrists.
You can find out more about this trick in my books:
Thanks to Jesse for describing this trick and to Tim, Nick and the team at Circus Arts Australia for providing videos for this page.