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KWA KM4 AEG Hop-Up Assembly


The KM4 AEG hop-up assembly fits all KM4 Series rifles, including the new SR Series.

It comes with everything pictured.

Please note that this does not come with the hop-up numb, part E-13, or the bucking, part E-14, which are also available here or through KWA

Specifications & Safety

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