The Silverback MDRX Piston Head V3 is a precision-engineered replacement component designed to enhance your V3 gearbox reliability and air seal consistency. Built from CNC-machined aluminium with ventilation channels, this piston head reduces wear and improves gas flow efficiency during the compression stroke—critical for maintaining consistent ROF and trigger response across extended gameplay.
Key Features
- CNC aluminium ventilated piston head – optimised air flow and reduced wear
- FKM compression o-ring – superior durability and consistent air seal
- POM glider ring – smooth, low-friction engagement with cylinder wall
- PU feeding o-ring – reliable hop-up bucking interface
- Stainless steel delayer tube and spring included – drop-in assembly ready
- V3 gearbox compatible – fits standard V3 spec platforms
Real-World Use Cases
Whether you’re running a DMR, carbine, or full-size rifle, gearbox longevity depends on piston quality. This component is essential if you’ve noticed inconsistent FPS, premature piston cracking, or poor air seal. Upgraders and milsim players rely on Silverback components for reliability during multi-hour skirmishes.
Technical Specifications
- Brand: Silverback
- Model: MDRX Piston Head V3
- SKU: SBA-APH-03
- Gearbox Version: V3
- Material: CNC aluminium (piston head), POM glider ring, FKM and PU o-rings
- Included Components: Piston head, delayer stainless steel tube, spring, compression rings
- Price: £17.50
Compatibility & Upgrades
Fits all standard V3 gearbox platforms: AK variants, M16A4, M4A1, and licensed replicas using V3 internals. Compatible with most aftermarket cylinders and nozzles. Pair with a quality piston and tappet plate for optimal gearbox efficiency. Assembly requires high-strength thread-lock fluid to secure delayer components.
UK Legal & Site Notes
This is an internal upgrade component with no impact on UK airsoft legality. Suitable for all UK site play. Installation should be performed by experienced technicians or under supervision to ensure correct assembly and thread-lock curing time.
Stock Silverback MDRX piston heads now at Airsoftdirect UK—order today for swift dispatch.







