Rapid Fire - The Best Solution

@TJMotor I say for it to stay at a lower rof at the beginning (lower than his regular rof without rapid fire) then after after 15 shots then have it increased afterwards. And it should have a higher average dps per magazine than without it.

That way the disadvantage of equipping it is having a slower rof at the start of firing (first 1/3 of the clip) but reward comes at the end of your magazine.