Enhanced Sight Picture, Faster Sight Pickup
Light gathering, interchangeable fiber optic rods really stand out against dark target backgrounds. Interchangeable green and red rods allow turning for various light conditions and targets. Improves front sight visibility, excels when used with ghost ring rear sights.
1911, Issue:11, Page:042
Big Book Catalog, Issue:71, Page:135
Sinclair, Issue:1A, Page:039