Bolt carrier accessory set for MWS GBBR Marui SP System

SP System is an Asian brand offering excellent internal and external GBBR replica upgrade parts.

Here we find a bolt carrier accessory set made from reinforced polymer, metal and aluminium in black compatible with MWS GBBR series replicas from Tokyo Marui. Includes a 60-degree piston head, a reinforced nozzle spring, a set of screws and a set of small springs for mounting your nozzle. Ideal for upgrading or repairing your GBBR airsoft replica!