The buffer is a cylinder hydraulic with a hydropneumatic recuperator.

The recoil system consisted of a hydraulic buffer and hydropneumatic recuperator.

Recoil system consisted of hydraulic recoil buffer and hydropneumatic recuperator, both located inside the cradle under the barrel.

The gun was equipped with semi-automatic vertical breech block; recoil mechanism consisted of hydraulic recoil buffer and hydropneumatic recuperator.

It used the typical German recoil system where the hydraulic buffer was housed in the cradle underneath the barrel and the hydropneumatic recuperator in a cylinder above the barrel.