XS Standard Dot Tritium front sight for the AR features precision machined stress proof steel, a white ring, and green tritium center for visibility in any lighting condition. Outside Diameter Standard Dot 0.140". Each full rotation of front sight gives a 5" shift at 100 yards. Made in the USA. Fits AR front sight housing with front sight detent at 3, 6, or 9 o'clock.
Link to XS written Installation Instructions
WARNING Cancer and Reproductive Harm – www.P65Warnings.ca.gov