This Minox ZX5i 3-15x56 scope with BDC reticle features a large field of view, special optical high-tech glass, sharpness and clarity in low light situations, infinitely variable reticle illumination, position sensor that automatically deactivates illumination, M* multi-coating, 1/4 MOA elevation and windage adjustments, shock and scratch resistant aluminum housing, comfortable variable power adjustment, quick adjusting ocular, argon gas, and waterproof/fogproof internal lenses.