I think what you mean is reduced recoile, everything has a bit of recoil.
As Flint Rock explained to you those are the advantages of reduced recoile.
I know to some of the more seasoned members this question seem about half retarded, but to someone that dosen't have a clue, and obviousley this member dosen't, this is why we are here, to help and inform! if we send everyone to the all knowing Google God there isn't realy much use for this forum, I know it's aggrevating at times just remember somebody took the time to explain it to you some where a long the line.
If you run your just going to die tired!!!