4UANTUM Hop-Up Chamber — Magnus PRO (GHK / VFC GBBR)
The Magnus PRO is a high-precision hop-up chamber CNC-machined from solid 6061 aluminum, engineered to deliver maximum stability and consistent accuracy for your GBBR platform. Its unique vertical TDC (Top Dead Center) adjustment ensures that the pressure point remains perfectly centered regardless of tuning — providing repeatable and stable performance in every setting.
The self-centering tri-lug locking system is a breakthrough design that not only aligns the inner barrel with absolute precision but also secures it firmly in place under heavy stress. A CNC-machined bucking sleeve guarantees proper bucking alignment and long-term consistency.
The adjustment dial is easily accessible through the ejection port, allowing fine-tuning with any pointed tool — no disassembly required. Perfect for on-the-fly adjustments in the field.
Key Advantages:
Crafted from solid 6061 aluminum – lightweight yet extremely strong
Vertical TDC motion for consistent pressure and uniform performance
Self-centering tri-lug lock for perfect barrel alignment and superior stability
CNC-machined bucking sleeve ensures correct bucking orientation and lasting precision
External adjustment via ejection port – no tools or disassembly needed
Designed for GHK & VFC AR GBB systems (see installation guide below)
Installation Guide:
Member of EU
0
