New release from Sightmark, the Sightmark Ultra Shot M-Spec FMS Carbon Fiber Reflex Sight... "A special offering for Sightmark’s 10th year anniversary, the all-new Sightmark Ultra Shot M-Spec FMS Carbon Fiber takes advantage of the same advanced optical design of other trusted M-Spec models, but features a real carbon fiber protective hood, helping it weigh in 30% lighter than popular reflex sights from other manufacturers.