Originally Posted by
polydeuces
I was told by "someone" that the ideal length is 12", or as close to it as possible.
This being the length giving the best combination of performance/size, which exhaustive tests (on our tax-dollars) apparently have shown.
Won't name this person, because it is not my place to do so, but rest assured his opinion is highly regarded across this board.
Having an 11.5" SBR puts me close, but I am seriously looking at getting a Centurion barrel and have it chopped to just that, not that it shoots bad now - far from it but for no other reason than silencing my inner OCD child....