This was a further development of the Malmö MFI-9 Junior.

https://en.wikipedia.org/wiki/Malm%C3%B6_MFI-9_Junior

That aircraft actually saw combat in Biafra in 1969, where they bombed Nigerian airfields and destroyed several aircraft:

https://en.wikipedia.org/wiki/Carl_Gustaf_von_Rosen

He imported five small civilian single engine MFI-9 planes produced by Malmö Flygindustri, at that time owned by SAAB, which he knew could also be used for a ground attack role in warfare. He had the planes painted in camouflage colours and fitted with license manufactured 68 mm SNEB type rockets, and proceeded with a crew of two Swedes and two Biafrans to form a squadron called 'Biafra Babies' to strike the air fields from which the federal Nigerian Air Force launched their attacks against the civilian population in Biafra. On 22 May 1969, and over the next few days, von Rosen and his five aircraft launched attacks against Nigerian air fields at Port Harcourt, Enugu, Benin and other small airports. The Nigerians were taken by surprise and a number of expensive jets, including a few MiG-17 fighters and three out of Nigeria's six Ilyushin Il-28 bombers, were destroyed on the ground.

Here's a pic of it with weapons:

https://alchetron.com/cdn/malm-mfi-9-bf6fa417-e38c-42fb-8328-0fb27a49b8e-resize-750.jpeg