ARES now offers the entire hop chamber unit for your favorite M4 AEG! The ARES Hop Up Set for M4 is the perfect kit to make your M4 shoot with precision, easy to install which comes with hop up rubber.

Features include:

• Hop up adjustable via ring for utmost stability
• Retaining clips and pins all designed for quick change of worn hop packing/rubber
• Highly durable and promotes high accuracy and lasting shooting stability
• Significantly lighter and stronger material than the stock hop up unit from original ARES M4
  
  Items Included:
• 1x ARES Hop Up Set for M4
• 1x Hop Up Rubber
  
  Only works with Ares Amoeba AM / CCG / AM series.