Some Soldiers are trying to adjust the front sight on their new M17/M18 pistol. Big mistake!
Adjusting the front sight yourself usually means a broken sight. And there’s no reason to adjust it anyway. The pistol came from the manufacturer already zeroed.
If your front sight gets damaged and needs replacing, see WP 0010-6 and -7 in TM 9-1005-470-23&P (Jun 19) for the steps to replace it.
Adjusting the front sight on the M17/M18 pistol can lead to damage
Your small arms shop will have the special sight pusher tool, NSN 1005-01-665-0463, needed to do the job right. It leaves the pistol zeroed and ready to fire.
Sight pusher special tool