Starrett Taper Pin Starter

The front sight on the AR-15 is secured to the barrel by two tapered pins. These pins are driven into the front sight from the right side of the rifle (as viewed from the rear), and are often very firmly seated. Because they have slightly radiused or rounded ends, you should never use a regular flat faced punch to remove or seat these pins. The AR-15/M16 Taper Pin Starter is designed to enable you to install or remove these unusual pins without damage to either the pin or front sight.

The right tool for removing or installing taper pins.