Made entirely of aluminium, the RIS top mounting rail for replica type AKS-74U. The B-18U rail is an extended version. The rail mounts on the replica's jaw.
The 5KU parts fit most AK replicas based on the VFC system (including. VFC, Boyi, Cyma) as well as E&L and LCT. We do not guarantee full compatibility, however, installation of some parts may require minor modifications and the use of tools.
