Kammala jumla mai zuwa: A cikin 1919 Weber ya shiga Freikorps Epp, wanda Franz Ritter von Epp ya ba da umarni, kuma ya ƙunshi mutane kamar Ernst Röhm, Rudolf Hess da kuma daga baya "
Jarumin Narvik" Eduard Dietl. A cikin wannan shekarar an karbe shi a cikin Reichswehr kuma an sanya shi a Ingolstadt da Nuremberg. Friedrich Weber ya yi aure a 1924, kuma yana da 'ya'ya maza hudu. A cikin 1926 ya zo Amberg don rukunin horo na 20th (Bavarian) Infantry Regiment ("20. (Bayerischen) Infanterie-Regiment"), inda aka daukaka shi zuwa Hauptmann (kaftin) a ranar 1 ga Afrilu, 1928. A cikin 1930 ya zama kwamandan kamfani na "13. Minenwerfer-Kompanie" a Regensburg, kuma a cikin 1935 kwamandan na 3rd na 20th Infantry Regiment ("Infanterie-Regiment 20") a Deggendorf.