Just wanted to throw this out there-Parker holsters is a new company on ebay selling IWB (crossbreed,comptac style) holsters and I bought one for my kel tec pf9 with combat cut upgrade for $47 shipped and have been wearing it now for a month,it is the bomb!Anyway,I threw it out to the guy hey maybe consider an IWB for the S&W model 457/4516!I informed him that alot of us carry those models still.I informed him that if he made one for the 457 he'd be a hero
No one else that I know of makes kydex/leather IWB for these models or any other 3rd gen but I could be wrong.