Bushnell's Bone Collector edition Trophy riflescope features a short 1-piece tube that stays out of your way while fully multi-coated optics provide a brighter, clearer image in any weather, due to Rainguard HD lens coating, fast focus eyepiece and side parallax adjustment, waterproof construction, the O-ring sealed optic stays dry inside, even when totally immersed in water and the scope is dry nitrogen purged.