WNS SPR-200 SightReplaces the SF Velocity Pro Carbon sight. With a carbon extension, micrometer height and lateral adjustments, plus both 8 32 and 10 32 sight pin supports included make this sight extraordinary value for money. It features easy to use micrometer adjustments and an increased durability over the previous generation SF branded sights. The double carbon foam layer extension minimizes the weight and the torque from each shot.