VFC M249 GBB Gas Ammo Box Set
VFC M249 GBB Gas Ammo Box Set
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DETAILS
DETAILS
- description
Out of the factory the M249 draws its gas from a reservoir shaped like an AR-15 STANAG magazine. It works, and it looks wrong. A belt-fed machine gun with an M4 magazine hanging off it is the one detail that undoes an otherwise convincing gun.
This replaces it with an ammo box, and the box carries a polymer dummy belt that vibrates as the gun fires. That is the detail worth paying for — static belts read as scenery, a belt that moves reads as a working gun. VFC also state the reservoir holds more gas than the STANAG-style one, so the practical gain is longer between fills as well as the look.
It is a first-party part for the M249 GBBR series and it runs on green gas, the same as the reservoir it replaces.
Specifications
| Specification | Detail |
|---|---|
| Type | Gas reservoir, first-party |
| Format | Ammo box with polymer dummy ammunition belt |
| Belt behaviour | Vibrates as the gun cycles |
| Capacity vs standard | Larger than the STANAG-style reservoir supplied with the gun |
| Gas | Green gas |
| Platform | VFC M249 GBBR series |
| In the box | One gas supply ammo box, one dummy ammunition belt |
| Manufacturer | VFC |
| Gas capacity figure | Not stated by the manufacturer at time of writing |
Good to know before you buy
VFC say it holds more gas than the standard reservoir but do not put a figure on either, so treat the gain as real but unquantified.
The dummy belt is part of the set rather than an extra, and it is what makes the box worth having over a plain reservoir.
Frequently asked questions
Does this replace the magazine or sit alongside it?
It replaces the gas reservoir the gun came with. You run one or the other, not both.
How much more gas does it hold?
VFC state it holds more than the STANAG-style reservoir without publishing either figure, so the comparison is theirs and the numbers are not published.
Does the belt actually move?
Yes. VFC list belt vibration as the point of it — the belt reacts as the gun cycles rather than sitting still.
Is the belt loaded with BBs?
No. It is a polymer dummy belt for appearance and movement. The BBs feed from the gun as normal.