BoFuller
Veteran Member
since all makers have lawyered up to the max, any trigger mods or other gunsmith work you have done to the action will, in most likelyhood be "repaired to factory specifications" in order to assure they cannot be found to be returning "out of specification" firearms.
My 2 cents,
Tom
Yeah, the instruction sheet from Glock says that sights are the only mod that they will not return to original. Anything else (custom trigger) they will replace with stock (and won't return the custom one).