distance from gas block/port to end of muzzle on 7.5/10.5 5.56 barrels

[brycewise]

What is the distance from the gas block to the end of muzzle on both a 7.5 pistol length and 10.5 inch carbine length gas system? I believe it is about 2 to 3 inches but I wasn't sure.

[Todd.K]

From the breech end of the gas block.
7.5" barrel is 3.22"
10.5" barrel is 3.13"