Weapon726, a popular gear retailer catering to the airsoft market mainly in Europe, posted on its YouTube channel and Facebook Page, a quick preview of an M249 AEG that has a simulated muzzle flash and smoke. We have no further information on this if it is a kit to be installed on M249 AEGs or it is a complete airsoft M249. If it is a kit, owners of the M249 AEGs, then this is can be a good kit to add on. Since we don't know how it really works if it is similar to cap guns, then owners of the new VFC M249 GBB LMG will have to wait for more info since green gas can be flammable.