After the Spanish Civil War, the German authorities started to think that a new anti-tank gun would be needed, even though the 3.7 cm Pak 36 had proven to be very successful.
Setelah Perang Saudara spanyol, Jerman mulai berpikir bahwa meriam anti-tank yang baru akan diperlukan, meskipun meriam 3.7 cm Pak 36 telah terbukti sangat sukses.