The sights arrived today, and I am a bit miffed. I called the vendor and specifically asked if the front sight could be installed simply by tapping out the pins, inserting the new sight, and tapping the pins back though the sight. He told me that was the case; however, there are no holes in the sight base, and the installation calls for drilling holes in the base. I don't have the equipment to do this correctly; so, now I will have to pay a gunsmith to do it.