Silverback MDRX Piston Head O-Ring (x5)

The Silverback MDRX Piston Head O-Ring (x5) is an essential maintenance consumable for owners of Silverback MDRX gearboxes. Over time, piston head o-rings can degrade, crack, or lose elasticity, compromising air seal and reducing both accuracy and rate of fire.

Key Features

• FKM (Viton) material – superior heat and chemical resistance versus standard rubber
• Correct fitment – 22×2 mm specification for MDRX piston heads
• Pack of five – multiple replacements reduce downtime during season
• Genuine Silverback component – maintains factory performance standards
• Budget-friendly maintenance – affordable way to restore gearbox sealing

Real-World Use Cases

Whether you’re running a high-ROF build or a precision milsim setup, a worn piston head o-ring will cause air leaks and inconsistent shot velocity. This pack ensures you have spares on hand for field repairs, maintenance between games, or as a preventative upgrade before an event. A five-pack also suits teams or those who maintain multiple MDRX platforms.

Technical Specifications

• Material: FKM (Viton)
• Specification: 22×2 mm
• Quantity: 5 o-rings per pack
• Compatibility: Silverback MDRX piston heads

Compatibility & Upgrades

Designed specifically for Silverback MDRX gearbox piston heads. Replacement is straightforward and requires basic disassembly; no specialist tools needed. Often paired with piston head upgrades, spring upgrades, or full gearbox rebuilds to ensure a complete seal.

UK Legal & Site Notes

O-rings are unrestricted airsoft upgrade parts and pose no legal concerns under UK airsoft regulations. Always confirm site rules before field testing any modified gearbox.

Stock your spares and keep your MDRX gearbox performing at its best. Order your Silverback MDRX Piston Head O-Ring pack today.