I was on the receiving end of my own A&K M249 POST hopup mod (I installed a Guarder Clear sleeve and used a piece of speaker wire insulation for the nub) at Border Wars II when I let one of our local guys on the other team use it for the game.
The dude was at the end of a path 200-ish feet away from our respawn picking off people with impunity and no one else could touch him. He said he could see BBs of people shooting at him hitting the ground 30+ feet in front of him.
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