4UANTUM Hop-Up Chamber TDC — Magnus PRO (GHK Glock Gen 5)
The Magnus PRO TDC is a high-precision hop-up chamber machined from durable CNC aluminium, built to deliver reliable and consistent performance for your GHK Glock Gen 5 system. Its true Top-Dead-Center (TDC) vertical movement keeps the hop-up pressure point in the exact same position at any setting — resulting in noticeably more consistent shot groups across the full adjustment range.
The chamber features an O-ring-mounted adjustment (grub) screw positioned directly under the block for accurate, rock-steady tuning. The adjustment screw is easily accessible when the cylinder head is removed, simplifying fine-tuning and routine maintenance. A closed adjustment ring system prevents misalignment and binding, ensuring smooth, repeatable adjustments over time.
Key features
Precision CNC-machined aluminium for durability and dimensional stability
TDC (Top-Dead-Center) vertical movement — consistent pressure point regardless of setting
O-ring mounted adjustment screw for precise, stable tuning
Adjustment screw accessible with the cylinder head removed — faster, easier tuning
Closed adjustment ring system to prevent misalignment or binding
Compatible with GHK Glock Gen 5
A premium upgrade for competitive and serious recreational players who demand repeatable accuracy and robust build quality from their GHK Glock Gen 5 platform.
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