COWCOW Aluminum Rear Sight Hi-Capa 5.1

Aluminum Rear Sight Highlighted features Aluminum material with CNC machined Ultra lightweight design Perfect and capable the needs for competition For Hi-CAPA *PS: Please note: installing parts / assemble /fitting airsoft gun will need intermediate knowledge; for expert or airsoft gunsmith. Please refer to your airsoft gunsmith for proper installation / fitting. Fitting may be needed as the condition of each airsoft gun might be different. Regular maintenance is needed for all airsoft guns in order to keep it in good working condition and reduce wear out issue on parts. Socket set screw require low strength thread lock glue to set.