Model 1911 Rear Sight

[jimmyj]

What height rear sight do I need to have my M1911 .45aco print higher?
The original GI rear fixed sight has the weapon impacting lower than the POA.

[reddog81]

It depends on multiple factors - the sight height now, and how low its impacting being the main ones. A taller rear sight will work or slower heavier bullets will typically hit higher. Have you tried different ammo?

[Wee Hooker]

Go to Dawson Precision dot com. They tell you how to calculate the proper sight height to make corrections. They can also fit /install a new sight for a very reasonable price.
p.s. Not that not all S&W1911's use the same sight cut. Best to be specific if/when talking to them.