ARWEN ACE

The ARWEN ACE is a breech-loaded less-lethal launcher designed by the British Royal Small Arms Factory (RSAF) Enfield, then part of the Royal Ordnance Factories. It must be reloaded after each shot.
The ARWEN ACE fires 37mm non-lethal rounds (foam or wooden payload) designed for riot control.
"ARWEN" is an acronym for "Anti Riot Weapon ENfield".
As of 2001, all ARWEN trademarks and patents are owned by Police Ordnance Company Inc. The weapon is manufactured under license in Canada.