The most expensive weapon in CS:GO. Clocks in at a whopping $5200, which is over half of the money cap in casual. The only reason to use this over the Negev is because you misclicked.
The Negev has a better magazine size (150 versus 100), better fire rate (1000 rpm versus 750 rpm), and turns into a literal laser beam after the 14th shot fired. Not only that, the Negev costs $1700. You can buy a Negev and a M4 and a flashbang for the cost of a M249.
Just buy the Negev. It costs less and turns into a fucking laser beam after the 14th shot, whereas the M249 is just a piece of shit.
xXx_AwpMain_xXx: "Holy shit. Why the fuck did you buy the M249 "The Misclick"?"
You: "Ah shit. I misclicked. There goes half my money"
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.