Good Evening....I have an "A" series model 41 and am looking to add some barrels such as a 5 1/2" Heavy or ????. I have owned the pistol since the mid 80's and enjoy shooting it very much. What is there available in aftermarket barrels and are they any better or worse than the S&W factory made barrels? It has a 7" on it now and many years ago I bought a 5" Field barrel at a gun show in Columbus, Ohio. It is new and has not been fired yet. Will S&W sell barrels to retail customers or will they only do business with dealers? What is a good source to buy barrels at resonable prices? Any information will be welcomed. Thanks much for your time. Richard Ramsey, North Ridgeville, Ohio