Fixed-power prism scopes have been topping ARs for decades thanks to their simple, compact and reliable design, but few have come close to the combination of value and performance of the Spitfire 3x. A custom BDC reticle, designed to subtend with most popular 5.56 cartridges, takes all the guesswork out of the equation on shots from 0-500 yards. Meanwhile, the glass-etched reticle can be used with either the red or green illumination, or without any power at all like a traditional riflescope.