Army to field new grenade launcher
By Matthew Cox - Staff writer
Posted : Thursday Nov 20, 2008 15:31:24 EST
The Army will begin replacing its Vietnam-era M203 40mm grenade launcher in February with one designed so soldiers can sight in on targets day and night.
Program Executive Office Soldier “type-classified” the new M320 40mm grenade launcher Nov. 6, a move that ends the weapon’s experimental status as the service moves toward issuing the first of more than 70,000 M320s to deploying combat troops.
“It is going to completely replace the 203s” in the Army’s active, National Guard and Reserve force, said Rich Audette, PEO Soldier’s deputy project manager for Soldier Weapons. “It’s the first time we will have a day-night capability with a grenade launcher.”
The M320 has a sighting system that will enable soldiers to shoot enemy targets around the clock out to 400 meters, unlike the M203 sight system, which is designed for day firing.
The Army has used the M203 since 1969 and has about 50,000 of them. Back-to-back combat tours in Iraq and Afghanistan have taken a harsh toll on the venerable launcher.
The Army plans to begin fielding the first of 71,600 new replacement launchers in February for a cost of about $3,500 each, Audette said. Fielding of the M320 will likely be completed by 2015, Audette said.
Each M320 will come with a laser range finder and a sophisticated sight that even lets soldiers know if they aren't holding the launcher right.
The grenadier lazes to the target to get the exact range, then dials in the meters to the target, which are displayed in a tiny window on the day-night sight.
The sight indicates whether you are holding the launcher canted too far left or right with a tiny, blinking light — red means it’s canted, green means it’s straight.
For aiming at night, the sight is equipped with a push-button, infrared laser pointer that the grenadiers will see through their night-vision gear.
Like the M203, the M320 mounts beneath the M16 rifle and M4 carbine, but its breech swings open to the left side of the weapon so it can fire grenades up to approximately 9 inches in length.
The M203's slide-up breech prevented the Army from using specialized ammunition such as non-lethal rounds longer than 5.5 inches, Army weapons officials say.
The M320 also has a safer firing mechanism than its predecessor. It has a double-action trigger, an improvement over the M203's single-action trigger, weapons officials say. With the M320, the firing pin remains in the un-cocked position. Pulling the trigger cocks the firing pin to the rear and fires it, reducing the possibility of a round going off if the weapon is dropped or bumped, weapons officials say.
The M320 features its own pistol grip instead of relying on the 30-round magazine of the M16.
Before it is fielded, weapons officials must get a final blessing from Tank-automotive and Armaments Command for “full material release,” said Audette, adding that should be completed in early December.
From there, the Army will conduct some final tests on the first M320s off the assembly line to ensure they meet Army requirements, said Barbara Muldowney, deputy product manager for Individual Weapons.