Surefire typically comes to mind when looking for a powerful and compact flashlight, and they did it right with the G2($39). The G2’s body and bezel is built with a ruggedized corrosion proof material called Nitrolon. This little guy packs a major punch ranking in at up to 120 lumens (with a P61 lamp). Measuring in at 5.10″ long and 1.25″ in diameter and weighing a mere 4.1 ounces, the G2 is practically pocketable. The G2 is operated by a rear button tactical push for on and twist to stay on style switch. Available in the four colors seen (black, yellow, tan, and green).