I have wondered about this too, then just about a month ago I recall a similar post about the conundrum of Destiny's handcannons and I recall this shared in a post: http://www.tombstonetactical.com/images/chiappa-firearms/50DSWR-1-large.jpg Here is a pic of the inner workings of the revolver in the above link: http://i.imgur.com/DCEeuHZ.jpg Looks like this is the basis of the majority of Destiny's handcannons, even down to the holes above the barrel. My big question is how the hell does the scope on the Icebreaker work?!