Luftvernkanon 58

The Luftvernkanon 58 is a 20mm towed twin anti-aircraft Autocannon introduced into Ringerike military service in 1958, the cannon itself has seen service adapted onto multiple platforms with the towed version being the most enduring of them, seeing continuous service up until the present day within the Ringerike Home Guard. The most recent model was introduced in 2013, when the gun was paired with LvM m/77 missiles to provide an add on missile capability.