RetroArms CNC Gearbox P90 (V6) QSC, 8mm – Black

CNC Gearbox by RetroArms
The CNC gearbox V6 QSC is designed for P90 and other airsoft replicas using the V6 gearbox. It’s made from aircraft-grade aluminum EN AW 7075 T651, which offers greater strength than common structural steel, far surpassing regular zinc alloy gearboxes. The key advantage is the QSC spring quick change, allowing the spring to be replaced with a hex key without disassembling the gearbox. When installing, ensure the spring guide is properly secured to avoid misalignment and damage (ideally used with the RetroArms QSC screw, sold separately).Thanks to CNC machining, this gearbox features precise dimensions and maximum compatibility with Tokyo Marui standard internals. Installation requires advanced skills due to differences between replica manufacturers. It’s not only suitable for high-power springs but also increases reliability and longevity in standard or DSG/TSG setups.

Upgrades in the 2025 Version

Improved bevel gear alignmentSlight adjustment of gear positions for better motor engagement.
Extended nozzle travelFeeder arm allows 0.3 mm more forward movement for better feeding and shorter nozzles.
Updated cylinder seatNow rests on 8 contact points for easier installation and compatibility.
Optimized ANTIROT bearing seatGrooves added for glue or anti-rotation bearings.
Increased front radiusImproved durability against cracks when using strong springs.
Redesigned piston railsGeometry optimized to increase gearbox and piston life.
Piston inspection portsNew ports for checking piston position while adjusting AOE.
Refined gear spacing areaImproved compatibility with more gear sets.
Added catch surface for COMPRING anti-reversal latchNew mounting point for more stability and performance.
Wider gear compatibilityUpdated shape allows more gear options without modifications.
Enhanced surface finishImproved assembly smoothness and extended durability.

Key Features

Made from EN AW 7075 T651Extremely strong and durable material for long life.
Quick spring change with ..