The 9mm AR (Colt 6450) is as smooth shooting as the M&P 22LR.
Never heard of anyone that couldn't run one fast and flat, there just is no flip, dip or movement at all compared to a 223.
That said I traded mine cause the 223 will out do any pistol chambering when it counts. Pistol cartridges belong in pistols unless you just want to have fun on the range.
Last edited by TWR; 10/19/14.
