Red Dot Scope
Red-dot & reflex scopes are handy. Highly-visible reticle, fast acquisition with both eyes open, great for low-light conditions. Recently they have gotten even better, with adjustable reticle patterns, dual-color reticles, and even a variable-size reticle model from Bushnell. But red-dot scopes have a weakness: battery power. Most people who use red-dot scopes have had a battery die on them. Hopefully they had a spare battery handy. If not, good luck hitting the target with no reticle to aim with. Trijicon and other companies have attempted to deal with the battery issue by powering their scopes with tritium capsules and/or fiber-optics . . .