Grenade launcher and pivot mechanism for same

A pivot mechanism for a grenade launcher of a type having a chassis and a barrel assembly mounted on the chassis, the barrel assembly including a barrel having a breech end and a muzzle end, the pivot mechanism comprising:

• a first pivot bar on the barrel assembly and extending transversely with respect to a longitudinal axis of the barrel and having a first hinge barrel disposed at one transverse end thereof, the first pivot bar being attachable in a first orientation wherein the first hinge barrel is on a left side of the barrel assembly and a second orientation wherein the first hinge barrel is on a right side of the barrel assembly;
• a second pivot bar on the chassis aligned with and facing the first pivot bar, the second pivot bar having a second hinge barrel disposed at one transverse end thereof, the second pivot bar being attachable in a first orientation wherein the second hinge barrel is on a left side of the barrel assembly and a second orientation wherein the second hinge barrel is on a right side of the barrel assembly;
• and
• a pivot pin extending in a first vertical opening in the first hinge barrel and in a second vertical opening in the second hinge barrel, the pivot pin defining a pivot axis for pivoting movement of the barrel assembly, relative to the chassis, between a closed position a selected one of a left open position and a right open position.