English: American Assault rifle M16A2. Caliber 5.56x45mm NATO. From the collections of Armémuseum (Swedish Army Museum), Stockholm. Sweden. With removed Background. The rifle in the photo was used by the Swedish Defence Materiel Administration (FMV) during the trials in the early 1980's, to replace the Swedish Ak 4 battle rifle. Ultimately, the M16 was not chosen as the new service rifle of the Swedish Armed Forces. Instead, the Belgian FN FNC was chosen, and since 1985 has been manufactured in Sweden under the Ak 5 designation. FMV donated this particular M16 rifle to the Swedish Army Museum in 1987.