COWCOW Aluminum Rear Sight Hi Capa 5.1 handguard Comfortable angled grip handstop in front Comfortable angled grip handstop in front of pistol grip The position of the release puts your index finger at the ready position as soon as the sidearm leaves the holster for fast weapon manipulation Aluminum Rear SightHighlighted featuresAluminum material with CNC machinedUltra lightweight designPerfect and capable the needs for competitionFor Hi CAPA*PS: Please note: installing parts assemble fitting airsoft gun will need intermediate knowledge Regular maintenance is needed for all airsoft guns in order to keep it in good working condition and reduce wear out issue on parts