I finally got them installed and fired a few rounds. They appear to be extremely acurate. from 15 yards I hit the target DEAD center with the first shot and the next 3 rounds where touching the hole from the first one. The final couple rounds where not touching the others but where within 1.5 and 2 inches (it's cold outside. I think I might have been shaking just a little). Even better than I was expecting, especially since I installed them myself (a first for me). For those waiting on the firing results these appear to be a winner, but I ran out of time today and will be putting them through some more thorough paces tomorrow at different distances. I'll post again tomorrow and give you the final anylasis. I'll also try to take some pictures. As a side note, they look extremely bitchin on the gun also .