Prowin Hop Unit for M4

Prowin Hop Unit for M4

ProWin - M4 CNC Hop Up Chamber For Marui M4 (AEG), delivers more range and improved accuracy from your Airsoft AEG. Designed for primarily M4 AEGs but may be compatible with other AEGs that use an M4 style hop unit. Not only does the hop unit look good it performs amazingly. With a highly precise and precision tuneable rotary hop wheel you can add micro hop adjustments to any weight BB.

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