The Archer Artillery System, or Archer – FH77BW L52, or Artillerisystem 08, is a Swedish self-propelled howitzer system. The main piece of the system is a fully automated 155 mm L52 (52-calibre-long) gun-howitzer and a M151 Protector remote-controlled weapon station mounted on a modified 6×6 chassis of the Volvo A30D all-terrain articulated hauler. The crew and engine compartment is armoured and the cab is fitted with bullet and fragmentation-resistant windows. The system also includes an ammunition resupply vehicle, a support vehicle, BONUS submunitions, and M982 Excalibur guided projectiles.

155 mm is a NATO-standard artillery shell caliber that is used in many field guns, howitzers, and gun-howitzers. It is defined in AOP-29 part 1 with reference to STANAG 4425.