Prowin AR9 Conversion Kit for Marui M4 MWS GBB
- Includes: CNC Aluminium AR9 Conversion kit x 1
- New version 47rds Lightweight Glock long magazines ( Marui system ) x 3
- Reinforced Loading Nozzle x 2
Conversion kit only, Marui MWS Rifle not Included
**Modification on upper receiver , bolt carrier and bolt catch is needed in order to install this conversation kit, please check the installation manual for details.**
