good luck finding the set screw for the rear sight. my local gunsmith did not have it and could not find it through their suppliers. trijicon recommended using the original screw from the original rear sight on the walther pps. the problem with that is the original rear sight does not have a set screw on the walther pps.
Pros: product is fine
Cons: trijicon does not provide the required set screw for the rear sight
This review was written in the old system and had content requirements that are different than reviews written today.