Carbon Express 4x32mm Pro 5-Step Lighted Crossbow Scope, built from aircraft-grade aluminum with rubber armor for shock resistance. Waterproof and fogproof, sealed with O-rings and nitrogen-purged optics. Features an illuminated multi-reticle with 5-step range compensation crosshairs, generous 3.8" eye relief, and includes 1" pro mounting rings. A durable, well-regarded scope for crossbow hunters.