The Bushnell Trophy TRS-25 Red Dot Sight offer unlimited eye relief for fast shots at imperfect angles and multiple brightness settings for maximum battery life and superior performance in a variety of lighting conditions. Features of the Bushnell Trophy TRS-25 1x20mm 3MOA Red Dot Reflex Sight: A compact, sturdy, reliable 3 MOA red dot sight with unlimited eye relief for handguns and shotguns. Black with 3 MOA Dot reticleWaterproof 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. Bushnell Trophy TRS-25 1x20mm 3MOA Red Dot Reflex Sight 731303