NGRS M4 Piston Carbon Fiber

£29.95

Carbon fibre loaded technopolymer body for strength and lightness
Full metal 14-tooth rack stands up to upgraded springs and motors
MIM manufactured rack for machined-grade dimensional accuracy
Low-friction sliding guides that hold lubricant longer
Designed specifically for Tokyo Marui M4 NGRS recoil shock gearboxes
Upgrade part for players building high-durability NGRS internals

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Description
Specification

Built for the NGRS gearbox

This carbon fibre piston is made specifically for Tokyo Marui M4 and SOPMOD Next Generation Recoil Shock gearboxes. It is the piece to fit when you are strengthening your NGRS internals to cope with upgraded springs and high-speed motors.

Carbon fibre technopolymer body

The body is moulded from technopolymer loaded with carbon fibre, a combination that stays light while offering excellent mechanical resistance. The carbon filler also adds smoothness, helping the piston glide cleanly through each cycle.

Full metal 14-tooth rack

The 14-tooth rack is full metal and produced using MIM, or metal injection moulding, from SAE 4650 steel. This gives dimensional accuracy and durability on a par with solid machined parts, so it holds up under hard use.

Smooth, lasting cycling

Low-friction sliding guides are designed to reduce drag and hold lubricant for longer, keeping the piston running sweet. Because fitting means opening the gearbox, consider our in-house repair and servicing team, and browse more airsoft accessories and upgrade parts.

Product information reviewed by James Smith. Every gun is checked & serviced by our Rochester workshop before dispatch.

General
Brand	FPS Softair
Platform	Tokyo Marui M4 / SOPMOD NGRS (Next Gen Recoil Shock)
Other
Type	AEG piston
Body material	Technopolymer loaded with carbon fibre
Compatibility	Tokyo Marui NGRS M4 series gearboxes
Rack	Full metal, 14 teeth
Rack manufacture	MIM (Metal Injection Moulding)
Rack steel	SAE 4650 grade
Guides	Low-friction, lubricant-retaining sliding guides
Purpose	Handles high-power springs and high-speed motors
Category	Airsoft upgrade / tech part

Recommended upgrades & accessories

Frequently asked questions

What gun is this piston for?

It is designed for Tokyo Marui M4 and SOPMOD Next Generation Recoil Shock (NGRS) gearboxes, not standard Version 2 AEG gearboxes. Confirm you have an NGRS platform before fitting.

Why choose a carbon fibre technopolymer piston?

The carbon fibre loaded body is light and mechanically strong, and the filler adds smoothness, so the piston cycles cleanly while resisting the stress of upgraded springs and motors.

Are the teeth metal?

Yes. It uses a full metal 14-tooth rack made by metal injection moulding from SAE 4650 steel, giving dimensional accuracy and strength comparable to solid machined parts.

Is this a job for a technician?

Fitting a piston means opening the NGRS gearbox and re-shimming, so unless you are experienced we recommend a skilled tech does it. Our in-house team can carry out the work.

Do I need a UKARA licence to buy an internal part?

No. An internal upgrade part is an accessory, not an imitation firearm, so no UKARA defence or two-tone requirement applies.

NGRS M4 Piston Carbon Fiber