Is it OK to use a sight pusher to install XS sights?
Not really. Sight pushers are a handy tool to easily move an already installed sight the small amount needed to regulate windage correctly. Sight pushers are a simple screw jack which has a very large mechanical advantage and can apply a great deal of force on a small area with an easy twist of the fingers. It is difficult to “feel” how a sight is going into the dovetail. Other maker’s sights have been manufactured to allow them to be installed with a sight pusher. One version will have a hollow area under them to allow the sight to compress and go on into the dovetail. Other manufacturers will build the sights out of soft steel so the excess material will readily shave off as the sight goes into the dovetail. We don’t think having sights made from malleable steel is a good thing so we build our sights from solid bar stock. Solid steel does not readily compress or bend. They are designed to be fitted in the traditional manner. If you use a sight pusher to install our sights in a doveta