EMG x Retro Arms CNC Machined Aluminum Rotary Hop-Up Unit for M4/M16 Series Airsoft AEGs

Features

• CNC machined construction
• Rotary design allows for easy adjustment
• Constructed from EN AW 7075 for extended lifespan
• All necessary hardware included
• Bucking not included

Compatibility: Most M4 series Airsoft AEGs
Material: Aluminum alloy