TruGlo Red Dot Dual Color Sight 1x30mm 5 MOA Red/Green Reticle, Matte Black. Waterproof/fogproof and shock-resistant up to .50 caliber muzzleloader. Unlimited eye relief. Wide field of view. Fingertip windage/elevation adjustment. Eleven position rheostat for brightness control. Multi-coated lenses produce more than 95 percent light transmittance. Special anti-reflective interior finish eliminates stray or reflective light from appearing inside the sight. Integrated Weaver-style mounting system. See-thru flip-up lens caps. Dual-color reticle illumination in red/green. This is a manufacturer's picture, so the item may not be exactly as it is shown in the picture.