This is terminologically incorrect, as the vehicle was purpose built as a first generation infantry fighting vehicle, intended to carry a designated pansarskytte squad in and out of battle, and during battle as a protected firing position, so called mounted combat, with the ability to off-load troops depending on the situation, so called dismounted combat, — see the Panzergrenadier-article for more information on this doctrine.

[1] Instead the vehicles were outfitted with storage for the weaponry, munition and equipment of the pansarskytte, such as machine guns, hand grenades and man-portable anti-tank systems.

The first standard fixed armament was a single ksp m/39 machine gun, fitted in a rotating turret ring on top of the cabin, sometime in the late 1940s.

In 1956, the existing vehicles received new armament in the form of twin ksp m/36 lv dbl (luftvärn dubbel) anti-aircraft machine guns in a rotating ring-mount on the cabin roof.

The armour-plates were made by Bofors, Landsverk, Bröderna Hedlund and Karlstads Mekaniska Werkstad and then delivered to Volvo or Scania-Vabis for final assembly on their chassis'.

During the 1950s the vehicles were modified with a ring-mounting for a double machine gun on the cab roof and at that time the designations changed to Tgb m/42 VKPF and SKPF (F = Fordonsluftvärn, or vehicular anti-aircraft).

After a number of KP gunners in Congo were shot in the waist, armour plating to cover the gap between the roof and the machine gun ring was added in sito.

[5] In 1993, Estonia, Latvia and Lithuania were rebuilding their militaries and Sweden donated 10 SKPF each, a total of 30, some being modified to mount a 12.7 mm DShKM heavy machine gun over the cabin.