The Bushnell Tac Optics Big D(ot) features a MASSIVE 37mm objective, which delivers bright images and an unrivaled field of view in the red dot market. Waterproof Construction – O-ring sealed optics stay dry inside, even when totally immersed in water. Shockproof construction – Built to withstand bumps, bangs, drops and the rough-and-tumble environment of the field. Nitrogen Purged Fog-Proofing – Nitrogen inside the scope ensures interior optical surfaces won’t fog due to humidity or rapid temperature change.
