Brought to you by Fox 2 Industries, these high visibility fiber optic sights replace the hard to see factory sights on the First Strike FSC paintball launcher. Retains stock mounting screws. Please Note: you will need to install the colored fiber on the front post after tightening set screw. The filament is installed over the screw and then bulbed with a lighter. Rear sight comes with Green rods installed. 1 red and 1 green rod will be supplied for the front sight. Made in Maine, USA