Picatinny fiber optic with magnetic sensor

Forged not as a mere fiber optic for a Picatinny rail, but as an awakened relic, this arcane filament stirs to life in the presence of unseen magnetic forces. Like an ancient sentinel sensing the pulse of hidden energies, it ignites with a luminous glow guiding its bearer through even the deepest, most impenetrable darkness!

*If the fiber optic fits loosely on the Picatinny rail, secure it by taping the underside.