ProWin HopUp Chamber M4, Marui AEG

ProWin HopUp Chamber M4, Marui AEG

Popular hopup chamber for most M4/M16 models on the market.

Features include:

• 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