porting weapons from a custom swep base

how would i begin to port this http://steamcommunity.com/sharedfiles/filedetails/?id=180507408 to ttt because it uses a custom base is it even possible sorry for the stupid question

Easiest way; Use a pre-existing TTT weapon as a sort of template and just use the model filepaths from this pack

trying that but ttts iron sight system is at a angle any way to make it look down the sights?

nm worked it out but can you hide the ttt croshair