Features:
- CNC 7075 Aluminum construction designed for better durability.
- Adjustable hop-up system for the user's preference.
- Increased air seal from the compression of the system.
- Includes a bucking unit to help restore internal parts.
- Heat treated quality control chamber to maintain temperature.
- Compatible with standard M4 airsoft models.

Package includes: 1X Hop-Up Unit, 1x Bucking

Color: STEEL GREY