Not too overly sized - True Precision Glock 43 Non-Threaded Barrel

My primary reason to purchase aftermarket barrels is to be able to easily distinguish handguns that I almost always buy in pairs. My goal is not to increase accuracy when target shooting. I usually don't want to mess with the internals, but the barrel can be easily removed and replaced if there are issues. Aftermarket barrels are generally oversized, and that can slightly help with accuracy if you are a truly an ace shooter (not many non-competition shooters can out-shoot their OEM barrels). The tradeoff for greater accuracy is reduced reliability. Because I have handguns for self-defense, it is important that I don't lose reliability. The TD barrel I received today for a Glock 43X looks extremely similar to the OEM in terms of size and cuts, and that is a very good thing. Inserting it into the slide, I can tell that it is just slightly larger than OEM and fits slightly tighter into the slide (but not by too much). You have to maintain some wiggle room. It is the black nitride color which has a true, consistent black finish that blends well into the Glock nDLC finish. I frequently hear about finish issues - I don't expect that to be a problem with the black nitride. I will update or post again regarding shootability and finish wear after a day at the range after I receive a TD barrel in copper. A very snug fit will wear the finish more than a looser finish, another reason to be glad that the barrel does not differ to much from OEM spec.