Ar-15 Front Sight Base, F Style

The AR-15 Front Sight Base, F Style, from CMMG is an essential component for shooters who demand precision and reliability on the AR-15 platform. This front sight base serves as the foundation for post-style iron sights, enabling co-witness or absolute-height sight pictures depending on your optic configuration.

Engineered for uncompromised performance in tactical, defensive, or competitive shooting environments, this base is designed to interface directly with standard AR-15 upper receivers. Built from hardened steel, it absorbs the rigors of duty-grade operation while maintaining concentricity critical for shot group consistency. The F-style designation indicates a picatinny-compatible mounting surface that locks down securely, ensuring your front sight post maintains zero through extended firing strings.

Law enforcement, military personnel, and civilian shooters running AR-15 carbines benefit most from this product. The low-profile footprint minimizes sight radius reduction when paired with modern optics, making it ideal for shooters who require both iron sight backup and optical primary systems on a single upper receiver.