Evening all, and welcome to my review of the new Iron Airsoft HK M320A1 airsoft 40mm grenade launcher.
From Wikipedia:
The 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.
Like the M203 it replaces, the M320 uses the same High-Low Propulsion System. (US 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 i