Seven, A2-style, front posts let you choose the right sight picture for improved hunting and target shooting accuracy. Tapered, round post with .072" (1.8mm) ball top; tapered post with .052" (1.3mm) ball top; tapered post with .034" (.87mm) ball top; square post with .072" (1.8mm) square top; square post with .052" (1.3mm) square top; square post with .034" (.87mm) square top; and two-way .072" square post with V-notch top and inverted V (point up) top. Mfg: Kns Precision SPECS:Steel, black, matte finish.