The Midwest Industries AK Alpha Series Krink Railed Top Cover provides a premium optics mounting solution with patented return-to-zero accuracy for AK Krink pistols in a sleek black finish.MI AK Alpha Series Krink Railed Top Cover - BlackONLY compatible with MI AK Alpha Series Krink handguards (MI-AK-ALPHA-BKM MI-AK-ALPHA-BKQR)Patented return-to-zero solution for accurate optic mountingHard coat anodized 6061 aluminum construction with 4140 steel locking blockDual aluminum struts provide extremely rigid lockupIntegrated rear sight for optic or iron sight configurationNo permanent modifications required - reversible installationCompatible with most AK Krinks including PSA and Riley DefenseMade in USA with lifetime warrantyPerfect for AK Krink owners seeking a professional-grade top cover that maintains dust/dirt protection while providing a stable platform for optics without permanent firearm modifications.