XS Sight Systems Ghost Ring w/Tritium Stripe Front Sight Springfield M1A SOCOM 16in bbl Matte Black Standard. 0.105in square top post. XS Ghost Ring for the Springfield M1A and M14 replaces the factory leaf with a steel aperture that has 0.125in diameter aperture. Buy some ghost ring sights today Specifications for XS Sight Systems Ghost Ring w/Tritium Stripe Front Sight: Manufacturer: XS Sight Systems Front Sight Color: Green Gun Model: Springfield Armory M1A Color: Matte Black Additional Features: White Stripe Gun Make: Springfield Armory Illumination Type: Tritium Gun Type: Rifle Package Contents: XS Sight Systems Ghost Ring w/Tritium Stripe Front Sight What firearm models does the manufacturer say XS Sight Systems Ghost Ring w/Tritium Stripe Front Sight is compatible with? The manufacturer says that XS Sight Systems Ghost Ring w/Tritium Stripe Front Sight is compatible with Springfield Armory M1A M14XS Sight Systems SR-0003-8: Ghost Ring w/Tritium Stripe Front Sight Springfield M1A SOCOM 16in bbl Matte Black Standard