Set Bolt Carrier Metal & Adjustable Trigger Box for MWS GBBR Marui SP System

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

Here we find a set including a complete bolt carrier and a complete trigger box, all made of metal and aluminum in black color compatible with MWS GBBR series replicas from Tokyo Marui. Compatible with RA-Tech's NPAS MWS kit (see recommended product). Ideal for upgrading your GBBR airsoft replica!

Highlights:
- Quality of design
- Robustness
- Drop-in kit
- Reinforced bolt carrier already assembled
- Complete trigger box already assembled
- Hammer power adjustable directly on the side of the trigger box
- Trigger box screws supplied
- Reinforced interior