Element M4/M16 Hop Up Unit

£12.99

Polycarbonate air-seal hop-up chamber for M4/M16 series AEGs
One-piece air-seal construction for a strong, leak-free seal
Rotary ring adjustment that holds its setting under hard use
Built to Tokyo Marui spec for wide clone compatibility
Restores range and grouping lost to a cracked or worn chamber
An affordable upgrade or repair part for M4 platform builds

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Description
Specification

Element M4 hop-up chamber

The Element M4/M16 Hop Up Unit is a polycarbonate air-seal hop-up chamber for M4 and M16 series airsoft AEGs. The chamber applies backspin to the BB, so a cracked or worn unit quickly shows up as dropped range and scattered grouping. This is a direct, affordable replacement.

One-piece air seal

Its one-piece air-seal construction reduces gas loss between the nozzle and hop rubber, helping to keep muzzle energy stable and your shots grouping tightly downrange.

Rotary ring adjustment

The rotary ring design makes hop adjustment simple and, importantly, holds the setting even after heavy use, so the hop is far less likely to back off during a skirmish. It fits Tokyo Marui-spec M4/M16 AEGs and the many compatible clones.

Fitting and support

You can reuse a good inner barrel and bucking. If you would rather not open the gun, our technicians can fit and test it through our airsoft gun repair service in Kent. Browse more airsoft accessories to complete your build.

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

General
Brand	Element
Platform	M4 / M16 series airsoft AEG
Other
Adjustment	Rotary ring hop adjustment
Compatibility	Tokyo Marui-spec M4/M16 AEGs and compatible clones
Part type	Hop-up chamber unit
Material	Polycarbonate
Design	One-piece air-seal construction
Feature	Rotary ring holds its setting under hard use
Function	Adjusts BB backspin for range and accuracy
Sold as	Single hop-up unit

Recommended upgrades & accessories

Frequently asked questions

Which guns does this Element hop-up fit?

It is made to Tokyo Marui M4/M16 dimensions, so it fits Marui AEGs and the many compatible clones built on the same pattern.

What is the benefit of the air-seal design?

The one-piece air-seal construction reduces gas loss between the nozzle and hop rubber, which helps keep muzzle energy and grouping consistent.

Will the hop setting drift during a game?

No. The rotary ring design holds the setting even after heavy use, so the hop is far less likely to back off mid-skirmish.

Do I reuse my existing barrel and bucking?

Yes, it accepts standard AEG-style inner barrels and hop rubbers, so you can carry over parts that are still in good condition.

Can you fit it for me?

Yes. If you would rather not strip the gearbox and front end yourself, our in-house team can fit and test it through our Kent repair service.

Element M4/M16 Hop Up Unit