US Patent 9261330 Firearm sight with dual diamond shaped apertures

A sight for use on a firearm includes a frame member mountable to a firearm and having a pair of spaced apart posts extending therefrom, a support member extending transversely between the pair of posts and selectively rotatable with respect thereto, and a sight element. The sight element is carried by the support member between the posts and includes a central portion rotatably coupled to the support member, a first sight aperture portion extending from the central portion and defining a first aperture formed in a diamond shape with an upper v-notch and a lower v-notch, and a second sight aperture portion extending from the central portion and defining a second aperture formed in a diamond shape.