I would put the M870 CS as the worst primary shotgun, although it is currently free it has serious flaws, such as its strange recoil that moves to the right, its range is bad even up close, its poor cadence and its pellets that are few to cover the circle of sight. The Spas 12 is an excellent shotgun, the worst things about this one is its the high price, the terribly slow reload and that you can no longer attach a silencer :-(