Triggers with overtravel adjustment should not be fitted to Series 80 Colts.
When the overtravel is adjusted to give minimum overtravel, it will not allow the firing pin plunger to work the full length. Resulting in "nicks" on the plunger caused by the firing pin. The nicks could 1) eventually stop the firing pin from striking the primer, 2) hinder movement of the plunger assembly to the point of not being able to pull the trigger, and 3) make total disassembly of the slide difficult.
"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."
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Former President of the ECPT