Stun Tonfas (スタントンファー, Sutantonfā) are melee weapons used for close range combat and are equipped to the arms of a Knightmare Frame.
The first Knightmare Frame to equip basic non-stun tonfas was the Glasgow. During the Invasion of Japan on August 10, 2010 a.t.b., the Glasgow used its tonfas in conjuction with stun guns. The Britannian Military later decided to combine the stun guns with the tonfas and henceforth they became "Stun Tonfas." The primary user of the Stun Tonfas is the Britannian Armed Forces. Stun Tonfas are usually equipped to mass production units due to the cost of newer technologies despite the Stun Tonfas being more obsolete and about to be phased out in service in favor of the Maser Vibration Sword and the new Needle Blazer. The Britannian Armed Forces surprisingly decided to reintroduce the Stun Tonfa's into their new mass produced seventh generation Knighmare Frame, the Vincent Ward.