How long is the barrel of a M203 when it is fitted with an M4?

A.  DESCRIPTION:  THE M203C GRENADE LAUNCHER IS THE EXISTING M203
GRENADE LAUNCHER (LIGHTWEIGHT, SINGLE-SHOT, SHOULDER-FIRED WEAPON)
AND THE NEW ADAPTER KIT TO FIT THE M4/M4A1 CARBINE.
CHARACTERISTICS ARE:

   (1)  CALIBER                 40mm
   (2)  LENGTH OF LAUNCHER      380mm
   (3)  LENGTH OF BARREL        305mm
   (4)  WEIGHT (UNLOADED)       APPROX 1.36 kg
   (5)  WEIGHT (LOADED)         APPROX 1.63 kg
   (6)  MAX RANGE               400m

Here ya go Rambo......., btw the launcher is fitted to the M4, not the other way around.

Mike

I think it stick out an inch from the muzzle, very close to being an inch anyways.