Hilton HG40
Hilton HG-40
Country of origin

United Kingdom


Hilton Gun Company

Year(s) designed


Weapon type

Grenade launcher



Magazine/Cylinder capacity

1 round

Used by

British special forces

The HG-40 was an experimental grenade launcher designed by UK-based firearms company Hilton.


The HG-40 is an underbarrel 40mm grenade launcher that was designed to be used in conjunction with the SA80 assault rifle. It was designed in the late 1980's. The HG-40 had a 40mm rifled barrel which was done in house by hand which made it very accurate. It was also mounted on to the Steyr AUG and Heckler and Koch rifles. It performed well during Government trials, and won over the Heckler & Koch grenade launcher which exploded during the drop test when dropped from a building. However, money talks, and Heckler and Koch got the contract.


  • War in the Streets, The Story of Urban Combat from Calais to Kafii, Colonel Michael Dewar, Hardcover: 192 pages, Publisher: David & Charles; REPRINT Edition edition (30 Jan. 1992), ISBN-10: 0715394770

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