4UANTUM Magnus Pro TDC Hop-Up Chamber HPA Parts For fun full automatic BB

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4UANTUM Magnus Pro TDC Hop-Up Chamber HPA Parts For fun full automatic BBPrecision machined from solid 6061 aluminum billet, the Magnus Pro Hop Up chamber features a true vertical TDC (Top Dead Center) movement. This means regardless of your hop up setting, the pressure point remains in the same position for consistent results. The O ring fitted grub screw directly under the chamber unit offers positive & intuitive adjustments which can be easily accessed by removing the slide assembly. Enclosed elevating ring design