Things I liked: 1-nice finish 2-improved accuracy
Things I would have changed: 1-Have a well defined witness mark for windage.
What others should know: I had to drill and tap the receiver--I did it myself. First epoxy the base on where you want it. Let it dry and now you have two free hands for drilling. The epoxying doesn't bother me since I bought the sight to put on--not on and off.
Things I liked: They worked
What others should know: I put two in which were wetted with TSI301(just my choice) and a dry felt pellet behind those two. Shot into a can covered with a towel. Retrieved the pellets. Turned the 2 wet pellets around so clean end was facing forward, put the third dry pellet , shot, and your done.