Attaches to rifles with built-in AK receiver rail interface; High quality 1913 Mil spec rail, T-marked for location; Constructed from hard coat anodized 6061 aluminum and melonite coated steel; Feature the patented Elite Defense QD system for no tool adjustment and repeat zero locking; Rail measures 6.75" long, weight 7.3 oz.; Black Finish; 100% Made in U.S.A., with Ml Lifetime Warranty