The SlantPro style rear sight is designed with concealed carry (EDC) as it's primary focus. The sight is contoured and completely snag free. The rear face is serrated and slightly slanted forward to help eliminate glare from any light source. In addition, this rear sight is equipped with the legendary single tritium insert (for low-light and nighttime shooting) that will align vertically with the front sight insert (when used as a set). This vertical alignment is proven to be faster and less confusing for the human eye.
Machining of the slide is required for installation. Heinie recommends using a competent pistolsmith for installation. HSP offers installation, turn around time is currently running about 1-2 weeks.
Blued finish, rust preventative is recommended.