TRUGLO TSX Tool-Less 5 Pin TFO Sight Tool-less design for windage and elevation adjustments. Lightweight composite pin guard. Large circular field of view. TFO pin uses our patented combination of Tritium and Fiber Optic technologies. Large circular field of view. Level with two vertical bars. Reversible bracket for greater vertical adjustability. Three sets of markings for elevation, windage and pin adjustments. Lighted models are designed to reduce unwanted pin glare. Reversible bracket for greater vertical adjustability.