The team proposed to use welded steel plates, but Renault refused as this entailed hiring expensive professional welders.

Nevertheless, the team took the initiative to build the Renault VO, a fully welded prototype of a Char Rapide, that could also serve as an alternative for the AMR 33 developed at the same time.

When the vehicle was finished in 1932, Renault was charmed by the proposal, but after long consideration decided against it and ordered a riveted version to be built.

After testing by the Section Technique de la Cavalerie the prototype was improved by installing larger fuel tanks and a stronger clutch and gearbox.

Before the first vehicle was even delivered, it was decided on 26 June 1934, as part of the Plan 1934 to improve both quantity and quality of French tank production, to change the specifications for an AMC: its armour had to be immune to anti-tank guns.

By 1937 the growing production of more modern tanks allowed the AMC 34 hulls to be shipped from France to Morocco to be used by the 1e Régiment Chasseurs d'Afrique, which received them on 15 December 1937.

To fill the latter position on 13 September 1935, 25 AMC 34 hulls were ordered with Renault, at a unit price of 360,000 French francs, and 25 turrets with APX.