Attaches to Yugo Pattern AK rifles with M70 receiver interface Puts optic on center or extremely close to center of the top cover on mil-spec built M70 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 Feature the patented Elite Defense QD system for no tool adjustment and repeat zero locking Weight 8.2oz 100% Made in U.S.A., with MI Lifetime Warranty