That will not cause damage. Not Garin, but I know what he's going to say, and you're good to go.
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WS6 is 100% correct. The latch is made from heat treated bar stock and the teeth will not wear out. Other latches out there are made by MIM and can not be heat treated so they wear with use and that is their recommendation to limit the use of the engaging of the teeth. That is not the case with the Surefire suppressors.
My latch seems to be making new teeth in the suppressor body at its fully tightened position. Am I doing something wrong?
Is it indexing correctly? What do you mean, you mean it is "making teeth" that "super-impose" over the existing teeth, for lack of a better term? If so, then yeah, that's normal and won't effect a thing. The teeth have nothing to do with lock-up. They are there to let your hands and/or ears know that you are effectively tightening the lock collar (provided the can is seated correctly...). The angle of the teeth on the pawl as well as the rockwell hardness and type of material used that it interacts with are such that the system would be 100% effective, even without the ridges. I personally think that the REAL reason SF machines those ridges is so that people will hear/feel them, and they won't see new ridges created by the pawl on a smooth section and totally freak, however, it seems that you and I are OCD enough to notice "new" ridges, anyway, lol. Your can is fine unless you notice it coming loose, or not indexing correctly, or not seating all the way, or something like that.