Developed between 1967-1968 by the AAI Corporation of USA, under contract from the U.S. Army, the M203 was first issued to US troops in Vietnam. It was designed to attach to AR-15/M16 type rifles in use by the Army, however there are a number of third-party equipment and attachments to allow it to be used as a stand-alone weapon.
In Ghost Recon Edit
In Ghost Recon Future SoldierEdit
"Gives a rifle more power by launching grenades up to medium engagement ranges."
The 40MM HEDP Launcher is an Underbarrel attachment that attaches a special launcher to the weapon. It fires 40MM HEDP (High Explosive Dual Purpose) rounds that explode on impact. The 40MM round will need to travel a certain distance before it can explode. Unexploded 40MM rounds can temporarily knock down enemies.