These sights are heavy duty and bright in daylight or low light. But they are impossible to adjust/machine so they are very accurate. After filing the rear sight to fit and installing them I was shooting 4" low and left at 12 yards. If they were filed enough to make them accurate they would not fit in the rear sight dovetail. They were a lot of money for lousy accuracy.
Pros: Heavy duty and very bright
Cons: Impossible to set up to be very accurate
This review was written in the old system and had content requirements that are different than reviews written today.