• Full CNC Aluminum
• Compatible with v.2 AEGs
• Easy to adjust hop-up using rotary wheel instead of gears
• Easy to install
• Includes C-Clip, Brass Ring
• Hop-up bucking nub not included

The SHS CNC Rotary Style Hop Up Chamber for M4 v.2 is a superior replacement for most stock v.2 hop up chambers. The rotary wheel is easier to adjust than the standard 3-gear system, especially when wearing gloves. The unit comes with everything you need to make a quick upgrade.