Sight is pretty easy to install, about 15 mins;
-knock the sight pin out and remove factory sight
-to fit the new sight it takes a bit of filing on each side of the insert slot. I blue taped the sight above the file areas to protect it, used a smal flat file a few strokes at a time per side until it would tap in gently
-using a matching bit drill from one side half way in, then drill from the other side until it passes thru.
-coat the sight pin with some blue Locktite, tap it in, go shoot.
I did it at the kitchen table with my armorer block, heres a good video explaining the process using a vise.
[ame]https://www.youtube.com/watch?v=aVtn9qzPWZ0[/ame]