Dice and EA take a look at this
i investigated barrel attatchments VS bullet fall off damage and discovered the attatchments are the same when it comes to range and bullet fall off damage. bullet fall off starts at 15 meters and is stable at that damage range up 20 meters which is a bit absurd. the extended, short barrel, and standard are identical in both range and fall off damage. i also investigated the m416 a2 and discovered fall off damage starts at 10 meters. thats ridiculous... at 10 meters the damage is -6 same with the extended barrel do something about this.. if a standard barrel bullet fall off damage is at 15 and 20 meters.... with a extended barrel it should start at nearly 40 and 45 meters. the video of the investigation is below. the attatchments are bugged you guys need to do your own investigations