Charlie, the sights are very easy to install. The rear sight installs in the existing tang and uses a plastic adapter to maintain the correct angle. The front sight, the 17, is installed by tapping the old one out, and tapping the new one in. Total time should take you about 15-20 minutes.
The set makes aiming much easier. I also use the combination on my T/C Hawken, .40 and .50 caliber Green Mountain barrels.