TOKYO MARUI - Type 89 5.56mm Assault Rifle GBBR Mount Rail

● 20mm Rail Compatible : Those 2 mounts are compatible with Picatinny 20mm rails

● Light Weight Plastic Mounts : As for the light weight of the Micro Pro Sight, those plastic mounts with their skeleton design are light in order to keep the whole set the lightest as possible.

● 2 Heights Set : This set includes a 20mm height middle mount and a 28mm height high mount.