It must stay accurate and work after falling at least 5 ft. When in the dark, a red dot on max brightness lights you up, too. Some dots have an automatic mode, but it sometimes doesn't work right. The dot can wash out unless it's turned to max brightness. When shooting in low-light with a weapon-mounted light (WML), Battery replacements and cleaning cost more time and money. If you mount a red dot on a pocket pistol, it'll be too tall to fit in most pockets, and present a snagging hazard.
WHATS BETTER 3 MOA VS 6 MOA HOW TO
It's mostly learning how to see the dot fast.
WHATS BETTER 3 MOA VS 6 MOA MANUAL
It has three manual brightness settings and an automatic function. The Burris Fastfire 3 is an excellent optic of high-quality.