http://anonwsajnu3r3ujosbh3d4ds3igreq7cjd2e7rcw3c2hc2hmpml5ibid.onion/shop/rocket-launcher/at-4-anti-tank/index.html
The Swedish Army had realized, in essence, that they had fielded the Miniman just in time for its obsolescence, and a successor was called-for in 1974. Work on the new weapon began in 1976 at FFV, the same company that had developed the Miniman. They basically scaled-up the 74 mm Miniman’s design, creating an 84 mm variant with an improved projectile and charge, and a largely new type of gun tube.