- Fine tune your hop-up with even more precision
- Brightly colored for easy adjustment
- Drop-in design requires no modifications to fit
Tokyo Marui M9 Series w/ built-in Hop-Up, SAI BLU, ISSC M22, Lonewolf, ZEV, G-Series ,and other GBB Pistols w/ WE-Tech Gas Blowback System. Will also fit other models with Hop-Up dials measuring a diameter of 9.1mm and 2.6mm thick
DISCLAIMER: Please use discretion when installing custom parts as fit and compatibility may vary. Some modification may be required. Professional installation recommended.