KA Tech MAC Polarstar Black Red QCU HPA M4 Polarstar HPA Engine:F2 Type 2: For traditional TM

Type 2: For traditional TM Spec M4 receivers (receiver and gearbox modification required)

This compactness allows for a more streamlined and lightweight design compared to traditional coil springs

Skeletonized trigger and hammer

Redesigned polymer baseplate with angled surface and dot matrix

Recommended for any HPA gun

KA Tech MAC Polarstar Black Red QCU HPA M4 Polarstar HPA Engine:F2 Type 2: For traditional TMEvery 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