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CYMA M4/M16 400R Hi-Cap Magazine

CYMA M4/M16 400R Hi-Cap Magazine

£7.45
£7.45
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DETAILS

SKU: 30329397
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Four hundred rounds, and a wider fitment list than most. CYMA publish this one as an M4 series magazine that also seats in a number of other AEG platforms, which makes it a useful thing to own if your collection is mixed.

The appeal of a four-hundred-round magazine is simple arithmetic. It is most of a box of BBs in one unit, and for a defensive position or a support gun it removes reloading from the list of things you have to think about.

What makes this one worth a second look is the fitment. Alongside the M4 and M16 series, CYMA name PJ, SRC, Boyi and APS replicas as platforms it fits. Hi-caps are often fussier than mid-caps about which magwell they will sit in, so a magazine with a published list of compatible brands is genuinely more useful than one sold as simply standard.

Beyond that it behaves like any winding hi-cap. Fill it, wind the wheel, and keep winding through the game as the stack feeds down.

Specifications

Specification Detail
Platform M4 / M16 series AEG
Also listed as fitting PJ, SRC, Boyi and APS replicas
Type Hi-cap, winding
Capacity 400 rounds
Brand CYMA

Good to know

Three things CYMA ask of this magazine: a little silicone oil through it before the first game, more oil at intervals after that, and no BBs left inside it in storage. Hi-caps are mechanical in a way mid-caps are not, and those three habits are most of what keeps one working.

CYMA do not publish the shell material for this magazine, so we are not going to tell you what it is. If that matters to your choice, our 320-round listing is confirmed by CYMA as a steel shell.

Frequently asked questions

What does it fit? M4 and M16 series AEGs, and CYMA additionally name PJ, SRC, Boyi and APS replicas as compatible platforms.

Is this a mid-cap or a hi-cap? A hi-cap. There is a winding wheel on the base and the BBs are held loose in the body rather than in a stack under spring pressure.

Is the shell steel? CYMA do not say, so neither will we. Our 320-round CYMA magazine is confirmed as steel if that is the deciding factor.

Do I need to wind it during a game? Yes, periodically. That is how every winding hi-cap works, and it is the trade for the capacity.

💡 Titan Forge Airsoft tip: A four-hundred-round hi-cap and a drum solve the same problem at different scales. If you are feeding a support gun rather than a carbine, look at the drum magazines instead.