Page 28 of my new M&P 9 Shield manual advises that only the front sight is adjustable for windage. It suggests using a brass drift(?) or punch, and I assume a hammer, to adjust the sight.

Has anyone adjusted the Shield front sight with a punch and hammer? The manual also states that the Shield is a precision instrument. Adjusting the front sight with a hammer doesn't sound like a precision process for a precision instrument to me.