I have had multiple items treated and I have been VERY happy with all of them. I have specifically had barrels and parts of handguns treated. I won’t get into how much more accurately these handguns now shoot. I know that they are better, but I do not have any “hard data” to support my opinion.I will give this single reason to have your handguns treated at Cryo Nebraska: they are SO MUCH EASIER TO CLEAN after they have been treated! If you start with a clean unit, read that as “brand new”, then the grime just falls off. I believe that they also function better and are more accurate, but put that aside. Just the ease of cleaning is worth the cost!