Specification:This AK railed scope mount features a 6.75" long rail for mounting a variety of optics to your rifle. This is designed to attach to rifles with built-in AK receiver rail interfaces using the ADM auto lock system. (Made In China)Attaches easily to your AK with a built in AK receiver rail interface.Extremely high quality 1913 Mil spec rail , T-marked for locationConstructed from hard coat anodized 6061 aluminum melonite coated steelFeature the patented ADM auto lock system for no tool adjustments and repeat zero locking.