G&G’sFlip-Up Front & Rear Sights, only available on the G&G Intermediate and Advanced series airsoft rifles, are now available as replacements for stock sights or backup iron sights to other optics. Made entirely from lightweight, durable powder-coated metal and securely bolts to MIL-STD 1913 Picatinny/Weaver rail systems. The sights can also be adjusted/zeroed for windage and elevation. The rear sight can be toggled between a close quarters and long range peep-hole.