The CN105F1 rifled tank gun is installed in the Giat Industries AMX-30 series MBT which until the introduction of Giat Industries' Leclerc MBT was the standard MBT of the French Army. The CN105F1 is 56 calibres long and is fitted with a semi-automatic vertical sliding wedge breech block. No muzzle brake is fitted and a compressed air scavenging system is used instead of a bore excavator. A thermal sleeve is fitted. The recoil mechanism uses two symmetrically opposed hydraulic brake cylinders with a single hydropneumatic recuperator cylinder. An electrical firing system is fitted.
As production of the AMX-30 series of MBT has been completed, only replacement CN105F1 guns are now being built. Production of this gun is undertaken at Giat Industries Bourges facility.
Production as required. Fitted to AMX-30 MBT, AMX-30 B2. A shorter barrel version designated D1504 is fitted to Israeli M51 Shermans, some of which have been sold to Chile.