Echo 1 is just a rebranding company, not sure who makes their M249 though. Either way, at $800 you could probably get a G&P with enough to spare for some gear. You really don't need a whole lot when it comes to airsoft LMGs, because you can just dump bags of BBs into the box mag directly. Although you haven't stated what you already own, if at all, in terms of gear. You still need BDUs, chest rig or plate carrier, pouches of some kind?