Features:
- Aluminum alloy construction designed for better durability.
- Adjustable hop-up system for the user's preference.
- Increased air seal from the compression of the system.
- Consistent BB feeding for improved performance.
- Package provides adjustment arms and springs to assemble.
- Reduces shock of the BB as it travels to he hop-up.

Specifications:
Compatibility: Version 2 Gear Box

Package Includes:  M4 Series AEG Hop-Up Chamber Parts

Color: BLACK