I have used a lot of Dawson stuff over the years, multiple sights too. They are well made, no problems at all, great to do business with. They mainly cater to the competition shooting crowd. I have used my sights very hard in competition shooting tens of thousands of rounds, bouncing off hard surface ports, etc., and never had a problem. The FO (Fiber Optic) will break eventually but they usually send you spare when you buy a sight set, you just cut to length and heat one end up with a lighter and your done.