I have found most of GG&G's products to be very high quality compared to most of the other brands. The manually operated sights are extremely solid - better than almost anything else I've looked at. The spring operated sights were produced at customer request, and since they rely on springs to deploy, the detents that lock them in place can't be nearly as tight as on the manual sights. Give the regular flip front a try.
Avoid the Samson - it wobbles really bad. I had one and sent it back.
