Barrel length question

[jcampanella]

What is the actual difference in barrel length overall with supressor between a 16" barrel and a 14.5" (non NFA) barrel?

[mvician]

1.5"








.

[MagicPie]

mvician is right, there is no real advantage both tactical or suppressor performance wise in just 1.5"

Do keep in mind a suppressed AR is still rather loud due to the round hitting supersonic, any decrease of report from the slightly longer barrel due to lower exit pressure, is overrun by the noise from the sonic crack.