M320 Grenade Launcher Module

Last updated

M320 Grenade Launcher Module
PEO M320 Grenade Launcher.jpg
Standalone M320 with detachable buttstock
Type Grenade launcher
Place of originGermany and United States
Service history
In service2009–present
Used bySee Users
Wars War in Afghanistan (2001–2021)
2022 Russian invasion of Ukraine
Production history
Designed2008
Manufacturer Heckler & Koch
Capco Inc.
Unit costUS$3500 [1]
Produced2008
VariantsM320, M320A1
Specifications
Mass1.5 kg (3.3 lb)
Length350 mm (13.7 in.)
Barrel  length280 mm (11 in.)

Cartridge 40x46mm SR
Action Single-shot, double-action
Rate of fire 5 to 7 rounds per minute
Muzzle velocity 76 m/s (250 ft/s)
Effective firing range150 m (490 ft) (point)
350 m (1,150 ft) (area)
Maximum firing range400 m (1,300 ft)
Feed systemSingle-shot

M320 Grenade Launcher Module (GLM) is the U.S. military's designation for a new single-shot 40 mm grenade launcher system to replace the M203 [2] [3] for the U.S. Army, while other services initially kept using the older M203. The M320 uses the same High-Low Propulsion System as the M203.

Contents

History

In 2004, the Army announced a requirement for a commercial off-the-shelf 40 mm grenade launcher. It had to be more reliable, ergonomic, accurate, and safer than the M203. It had to be able to fire all 40 mm low-velocity grenades but be loaded from the breech to accept future longer projectiles. Heckler & Koch's submission was selected in May 2005. [4]

After the U.S. Army at Picatinny Arsenal conducted a competitive bidding process for a new 40 mm grenade launching system, Heckler & Koch was awarded a contract to provide the XM320 beginning in 2006. The M320 was developed from but is not identical to the Heckler & Koch AG36 (a key distinguishing feature being the addition of a folding foregrip ahead of the trigger for use when the weapon is in stand-alone configuration, a feature the AG36 lacks). [5] [6] The M320 entered production in November 2008.

Fielding of the M320 was planned to begin in February 2009, with 71,600 GLMs planned to phase out the M203 by 2015. [1] The weapon was officially fielded in July 2009 at Fort Bragg by the 1st Brigade Combat Team, 82nd Airborne Division. [7] In June 2017, Bravo Company, 2nd Combat Engineer Battalion became the first U.S. Marine Corps unit to be issued the M320. [8] Following initial experiments, the Marines expect to issue 7,000 launchers between 2019 and 2022. [9]

Design

The M320 has three major parts: a grenade launcher with rifled barrel, Day/Night Sight (DNS) produced by Insight Technology, Inc and a hand held Laser Range Finder (LRF). Some of the benefits are:

The M320 with electronic targeting system mounted on the M4 carbine. PEO M320 on M4 Carbine.jpg
The M320 with electronic targeting system mounted on the M4 carbine.

The M320 is based on the earlier Heckler & Koch AG-C, but with some Army-specific modifications. It includes a folding foregrip and shorter barrel for a more compact package. The sights had to be reconfigured to shoot accurately with the slightly different ballistics from the shorter barrel length. The system was supposed to be lighter than the M203 (it is actually slightly heavier) and does not require specific mounting hardware. Breech loading allows the grenadier to load a shell while keeping the sight on target. [4] It weighs 3.57 lb (1.62 kg) in its base configuration, 3.89 lb (1.76 kg) with the LRF and electronic sight, and 4.8 lb (2.2 kg) with the stock attached. [1] The sights on the M320 are located to the side of the launcher, avoiding the problems that the M203 had with its sight design, which were mounted on top of the launcher and could interfere with the rifle's sights, so they had to be attached separately. This meant two separate operations had to be performed when adding the grenade launcher to the weapon, and since the sights were not integral to the M203, they had to be re-zeroed every time the launcher was reattached to the rifle. The LRF helps eliminate range estimation errors common in shots greater than 100 meters, thus increasing first round hit probability.

The M320 can fire all NATO high-explosive, smoke, and illumination grenades. Its breech opens to the side, allowing it to fire a variety of newer rounds which are longer, in particular certain non-lethal rounds, such as Federal Laboratories' "exact impact" (brand name) non-lethal sponge batons or sponge grenades. [6] The M320 operates in double-action mode, with an ambidextrous safety. In case of misfire, the M320 operator merely has to pull the trigger again. The M203 used a single-action mode, which cocks the weapon as the barrel is opened. The M203 operator has to open the barrel by unlocking it and pushing forward to cock the weapon and then re-close the barrel, then pull the trigger again. The problem with this is that in opening the barrel, the grenade is designed to eject and the operator must ensure that it does not fall to the ground.

The M320 is one of two 40 mm grenade launchers capable of firing Pike Missile (developed by Raytheon) without modification—the other being the FN EGLM (Enhanced Grenade Launching Module) developed for the FN SCAR.

Nonetheless, the weapon's introduction was not without criticism:

A U.S. Army soldier training with an M320 mounted on an M4 carbine Soldier shooting M320.jpg
A U.S. Army soldier training with an M320 mounted on an M4 carbine

Users

Non-State Actors

See also

Related Research Articles

<span class="mw-page-title-main">Heckler & Koch</span> German defence manufacturing company

Heckler & Koch GmbH is a German armaments manufacturing company that manufactures handguns, rifles, submachine guns, and grenade launchers. The company is located in Oberndorf am Neckar in the German state of Baden-Württemberg, and also has subsidiaries in the United Kingdom, France and the United States.

<span class="mw-page-title-main">Grenade launcher</span> Weapon designed to fire large-caliber explosive, smoke, or gas projectiles

A grenade launcher is a weapon that fires a specially designed, large-caliber projectile, often with an explosive, smoke, or gas warhead. Today, the term generally refers to a class of dedicated firearms firing unitary grenade cartridges. The most common type are man-portable, shoulder-fired weapons issued to individuals, although larger crew-served launchers are issued at higher levels of organization by military forces.

<span class="mw-page-title-main">Objective Individual Combat Weapon</span> US Army rifle development competition

The Objective Individual Combat Weapon or OICW was the next-generation service rifle competition that was under development as part of the United States Army OICW program; the program was eventually discontinued without bringing the weapon out of the prototype phase. The acronym OICW is often used to refer to the entire weapons program.

<span class="mw-page-title-main">M203 grenade launcher</span> Grenade launcher

The M203 is a single-shot 40 mm under-barrel grenade launcher designed to attach to a rifle. It uses the same rounds as the older stand-alone M79 break-action grenade launcher, which utilizes the high-low propulsion system to keep recoil forces low. While compatible with many weapons, the M203 was originally designed and produced by the United States military for the M16 rifle and its carbine variant, the M4. The launcher can also be mounted onto a C7, a Canadian version of the M16 rifle; this requires the prior removal of the bottom handguard.

<span class="mw-page-title-main">Heckler & Koch XM8</span> Assault rifle

The Heckler & KochXM8 is a lightweight assault rifle system developed from the late 1990s to early 2000s. The rifle was designed by German small arms manufacturer Heckler & Koch (H&K), and shares design and engineering with their G36 rifle.

<span class="mw-page-title-main">M79 grenade launcher</span> Grenade launcher

The M79 grenade launcher is a single-shot, shoulder-fired, break-action grenade launcher that fires a 40×46mm grenade, which uses what the US Army calls the High-Low Propulsion System to keep recoil forces low, and first appeared during the Vietnam War. Its distinctive report has earned it colorful nicknames, such as "Thumper", "Thump-Gun", "Bloop Tube", "Big Ed", "Elephant Gun", and "Blooper" among American soldiers as well as "Can Cannon" in reference to the grenade size; Australian units referred to it as the "Wombat Gun". The M79 can fire a wide variety of 40 mm rounds, including explosive, anti-personnel, smoke, buckshot, flechette, and illumination. While largely replaced by the M203, the M79 has remained in service in many units worldwide in niche roles.

<span class="mw-page-title-main">FN F2000</span> Bullpup assault rifle

The FN F2000 is a 5.56×45mm NATO bullpup rifle, designed by FN Herstal in Belgium. Its compact bullpup design includes a telescopic sight, a non-adjustable fixed notch and front blade secondary sight. The weapon has fully ambidextrous controls, allowed by a unique ejection system, ejecting spent cartridge casings forward and to the right side of the weapon, through a tube running above the barrel. The F2000 made its debut in March 2001 at the IDEX defence exhibition held in Abu Dhabi, in the United Arab Emirates.

The FNSCAR is a family of gas-operated short-stroke gas piston automatic rifles developed by Belgian manufacturer FN Herstal (FN) in 2004. It is constructed with modularity for the United States Special Operations Command (SOCOM) to satisfy the requirements of the SCAR competition. This family of rifles consists of two main types. The SCAR-L, for "light", is chambered in 5.56×45mm NATO and the SCAR-H, for "heavy", is chambered in 7.62×51mm NATO. Both types are available in Close Quarters Combat (CQC), Standard (STD), and Long Barrel (LB) variants.

<span class="mw-page-title-main">Heckler & Koch AG36</span> Grenade launcher

The AG36 is a single-shot 40 mm grenade launcher that operates on the high-low system and was designed primarily for installation on the G36 assault rifle, designed by the German weapons manufacturing company Heckler & Koch of Oberndorf am Neckar. It originally appeared as Heckler & Koch's candidate for the US Army's Enhanced Grenade Launcher requirement, evaluated for use with the XM8 and FN SCAR rifles. As is commonly mistaken, the "A" is not an addition to the name "G36", which is short for Gewehr 36, but is in fact an abbreviation of the German Anbaugranatwerfer, literally meaning "attached grenade launcher" and the 36 coming from the name of the primary weapon it was designed to enhance – the G36. It can also be used dismounted, with a stock attached as a stand-alone model, or a LLM01 laser light module can be attached to it.

<span class="mw-page-title-main">XM148 grenade launcher</span> Grenade Launcher

The XM148 was an experimental 40 mm grenade launcher developed by Colt Firearms as the CGL-4. Colt manufactured the launcher for field testing during the Vietnam era. After problems with the experimental design were discovered, the XM148 was replaced by AAI Corporation's conceptually similar M203 design, which became the primary grenade launcher used by the US armed forces and others until its ongoing replacement with the M320.

The Advanced Individual Combat Weapon (AICW) was an Australian prototype combination assault rifle and grenade launcher developed as a technology demonstrator. The AICW combined a standard 5.56 mm assault rifle based on the successful F88 Austeyr with a superposed load grenade launcher developed by Metal Storm.

The M576 is a US Army designation for a 2.646 in (67.2 mm) long and 0.254 lb (0.12 kg) heavy US 40mm grenade buckshot load used in the M79, M203, M320, and M32 MGL grenade launchers. It is olive drab with black markings. It was designed to give the soldier carrying a grenade launcher a powerful cartridge for close quarters combat with the maximum range at 98 ft such as found in clearing buildings, bunkers, and trenches, as well as thick vegetation at 885 ft/s (269 m/s).

The Type 91 Grenade Launcher is a Chinese grenade launcher used to launch 35mm non-lethal grenades. It may come in shoulder-launched, rifle-attached, and vehicle-mounted variants. The rifle mounted version has a similar loading mechanism to the American made M203.

<span class="mw-page-title-main">Heckler & Koch HK69A1</span> Grenade launcher

The HK69A1 is a 40 mm grenade launcher developed and produced by the German arms manufacturer Heckler & Koch (H&K). The weapon was designed to engage enemy troops and strongpoints out to a distance of 350 m; it can also be used to deploy smoke grenades and illumination flares.

<span class="mw-page-title-main">Heckler & Koch AG-C/EGLM</span> Grenade launcher

The AG-C/EGLM is a single-shot 40 mm grenade launcher that attaches to assault rifles of various types. It is manufactured by Heckler and Koch and is derived from the AG36. EGLM stands for "Enhanced Grenade Launching Module". A stand-alone variant exists. The device attaches under the barrel. A separate sighting system is added to rifles fitted with the AG-C/EGLM, as the rifle's standard sights are not matched to the launcher. The AG-C/EGLM can fire high-explosive, smoke, illuminating, buckshot direct fire, CS gas, and training grenades.

The MEI Mercury is a family of medium-range low-impulse 40mm grenade (40×46mmSR) developed by Martin Electronics, Inc. (MEI) that can reach out to 800 meters. The rounds are a fixed type ammunition designed to be fired from a 40 mm Grenade Launcher such as the M79, M203, M320, or Milkor MK-1.

The Milkor 40mm UBGL grenade launcher is a lightweight single-shot, underslung grenade launcher designed and developed in South Africa by Milkor (Pty) Ltd. It can be attached to most modern assault weapons and rifles using a Picatinny rail system. The UBGL is capable of firing standard 40mm rounds including illumination and observation rounds. Clip-on, clip-off mechanism allows the UBGL to be fitted, with an additional recoil buffer, to any weapon fitted with a Picatinny rail.

The Pike is a precision-guided mini-missile or grenade munition designed by Raytheon. It is a 40 mm guided munition that can be fired from the barrel of a Heckler & Koch M320 Grenade Launcher Module and Enhanced Grenade Launching Module (EGLM) like a standard 40mm grenade, but is powered by a rocket motor to propel it 2,000 m to give infantrymen improved extended-range precision capabilities. The weapon uses a digital, semi-active laser seeker to guide itself to within five meters of the target; it can operate in a two-man shooter/spotter team or by the grenadier alone lazing after firing, as it can fly for 15 seconds before homing in. When fired, Pike has a small propellant to "kick" it 2.5–3 m (8.2–9.8 ft) out of the tube before the nearly smokeless motor ignites, and range is dependent on firing angle. The munition is effective against fixed and slow-moving mid-range targets, using a 610 lb blast fragmentation warhead with a 10-meter lethality radius. Raytheon developed the weapon for three years in collaboration with Nammo Talley, which developed the warhead and propulsion system. The Pike is intended to be more accurate with a longer range than rocket propelled grenades (RPGs) and standard rifle grenades, while being far lighter and more cost-effective than current infantry guided weapons like the $78,000 each FGM-148 Javelin. Further improvements could include different fuses, multiple-round simultaneous programming and targeting with data-link capabilities, and platform integration onto small boats, vehicles, and small unmanned aerial vehicles (UAVs). Pike weighs 1.7 lb (0.77 kg) and is 16.8 in (43 cm) long, too long to fit in the breech of the M203 grenade launcher. At AUSA 2015, Raytheon revealed they had performed two successful test firings of the Pike.

References

  1. 1 2 3 40mm M320 grenade launcher will be replace M203 next year – Thefirearmblog.com, 5 December 2008
  2. "XM320 Grenade Launcher Module And XM26 Modular Accessory Shotgun System". Army Magazine. Archived from the original on 8 February 2006.
  3. "Product Manager Individual Weapons" Archived 22 February 2008 at the Wayback Machine
  4. 1 2 History of the Heckler & Koch 40mm Grenade Launcher – SAdefensejournal.com, 24 August 2011
  5. "AG36 / AG-C / EGLM / XM320 grenade launcher". Modern Firearms. Archived from the original on 3 June 2012. Retrieved 14 July 2007.
  6. 1 2 3 4 5 6 7 8 9 10 11 12 "Heckler & Koch M320 GLM (HK AG36) 40mm Single-Shot Under-Barrel Grenade Launcher (UBGL) (2010)". MilitaryFactory.
  7. MacLeod, Spc. Michael J. "Bragg GIs 1st to Field Grenade Launcher". Military.com, 8 July 2009
  8. Out with the old, in with the new: Marines test new grenade launcher module – Marines.mil, 9 June 2017
  9. Marine Corps testing upgraded grenade launcher – MarineCorpstimes.com, 14 June 2017
  10. Soldiers’ Perspective: The M320 Grenade Launcher – Kitup.Military.com, 28 May 2010
  11. Natick develops holster for M320 grenade launcher – Army.mil, 25 July 2013
  12. "ยุทโธปกรณ์ในกองทัพบกไทย". 2 May 2019.
  13. "The Ukrainian servicemen started using the M320 grenade launchers". 24 May 2022.
PD-icon.svg This article incorporates public domain material from websites or documents of the United States Army .