I'm thinking about purchasing a Noveske AR 15 N4. Currently the N4's only come in 14 inch barrels (W/ the 2 inch long flash sup). My question is, why would someone want a 14 inch barrel W/ the 2 inch flash, as opposed to the mid 16 inch. How much accuracy and velocity are you losing? Should I wait until he comes out with the 16 inch barrel. This rifle will be for range use and home protection. Thank you.