ProWin Hopup M4 | AEG/HPA Hop Up Units

ProWin M4 Chamber for M4 | AEG Hop Up Units

ProWin Now offers the entire hop chamber unit for your favorite M4/M16 AEG! The ProWin Brand is known to create precision complex-shaped parts with their refined CNC manufacturing methods which sets it apart from other brands cast metal method.The CNC milled hop up is made from a solid piece of stock aircraft grade aluminum which means that the material completely consistent and eliminates the possibility of bubbles and weak areas in the metal. Anodized hard treatment in cobalt blue color adds to durability and that custom look.

• Full CNC and anodized blue high grade aluminum body
• Hop up adjustable via ring for utmost stability in comparison to the gear type
• 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 traditional cast metal type hop up units