AK 5C

The AK5 (Swedish: AutomatKarbin 5, English: Assault Rifle 5) is the main service rifle of the Swedish Armed Forces. The weapon was originally based on the FN FNC, and is manufactured by Bofors. It fires the standard 5.56x45mm NATO cartridge.

Battlefield 4
The AK5C was first seen in the "Angry Sea"  gameplay trailer, and appears as Recker's secondary weapon, where it is seen with an ACOG optic with canted iron sights.

Trivia

 * In Battlefield 4, the weapon has the letters "SWE" inscribed on its side next to the serial number, indicating its Swedish origin.