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Ships within 48 hours · Estimated delivery Aug 11 - Aug 16
CNC aluminum hop-up unit for M249 platforms
Easy Installation: Installs as a single assembly into a standard gearbox
20g BBs and using a high capacity 300 round magazine
Simple replacement part for tuning range and accuracy
keeping them fresh and ready for action
KA Tech MAC Polarstar Blue QCU HPA M4 M870 CNC aluminum hop-up unit forEvery KA Tech rifle is built on internals and tuning weve spent the last four years perfecting. Our performance packages are the industry standard everyone else is chasing if you want something thats going to outperform everything else on the field, this is it. The QCU (Quick Carbon Upper) is a premium, competition ready HPA platform developed collaboratively by Gorilla Airsoft Technology and MAC Airsoft, then built and tuned by KA Tech. Engineered
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