EX 41 grenade launcher

EX 41
Type	Grenade launcher
Place of origin	United States
Specifications
Weight	9.98 kg
Length	914 mm
Height	279 mm
Cartridge	Hybrid design 40mm grenade combining elements of both low pressure and high pressure rounds.
Action	pump-action
Muzzle velocity	152 m/s
Maximum firing range	1,500 m
Feed system	4-round internal tube magazine

The EX 41 grenade launcher, also called the Shoulder-Fired Weapon (SFW), was a prototype multi-shot grenade launcher that was never adopted by the United States military. Most of its development was at Naval Ordnance Station Louisville for the US Marine Corps in order to replace the single-shot M203. NOS Louisville had previously developed the Mk 19 and Mk 20 multi-shot grenade launchers. The Picatinny Arsenal also aided in the EX 41's development as part of the Army's Bursting Munitions Technology program. In its final form, the EX 41 was intended to weigh as little as 6.8 kg and have a range of up to 3,000 m. The program never progressed beyond a single prototype and in November 1995, the design was sent to Knight's Armament Company for further development.

Instead of the standard low-velocity 40 x 46 mm grenade used by the M203 and M79 grenade launchers or the standard high-velocity 40 x 53 mm grenade used by the Mk 19, the EX 41 used a hybrid of the two developed by Indiana Ordnance. High-velocity ammunition such as the M430 HEDP and M918 practice grenades were fitted to the low-velocity cartridge cases, in order to have a longer effective range with a lower recoil. An optical sight of unknown manufacture was added to the top of the receiver to take advantage of the extended range of the ammunition.

References

Jane's Infantry Weapons 1997-98 (23rd ed.). Coulsdon, UK: Jane's Information Group. pp. 243–4. ISBN 0-7106-1548-5.

External links

• Archived production request for Knight's Armament Company
• 20mm AMR – New Use for Unused Ammo, SOF Weapons SectionCrane Division, Naval Surface Warfare CenterSmall Arms Weapons Systems Division, USSOCOM Comparative Testing Office