The Guns Modify Steel CNC Hopup Base was made specifically for the Marui Model 17 / 18C and is incredibly tough which will withstand the battering of top gas. This is something that the original version may have trouble with, especially with higher powered gas!
Items included:
1x Guns Modify Steel CNC Hopup Base for Tokyo Marui Model 17 / 18C
1x Set of screws
Disclaimer: All aftermarket upgrade parts require necessary skill or modification to install and assemble, please consult with your airsoft technician if needed.