Attaches to AK rifles with military AK receiver interface - Puts optic on center or extremely close to center of the top cover on mil-spec built AK rifles - Modular top piece allows the top to be changed to a different configuration later if desired - 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 - 100% Made in U.S.A. with MI Lifetime Warranty