KNDS has quietly tested its 140mm ASCALON cannon on the Leopard 2 A-RC 3.0—an unusual pairing that defense watchers see as an early signal of what the future Franco-German MGCS tank could become.
The move drew little public attention, but it’s significant: KNDS, the industrial group formed from the tie-up between Nexter and Rheinmetall-Landsysteme, has been advancing an unprecedented configuration—mounting the ASCALON cannon on the Leopard 2 A-RC 3.0 chassis, a remotely operated-turret variant shown at recent defense trade shows.
Industry observers view the test as more than a technical exercise. They see it as a clue to the real trajectory of MGCS, the “Main Ground Combat System” program meant to replace France’s Leclerc and Germany’s Leopard 2 in the 2040s.
A 140mm gun meets a Leopard demonstrator
ASCALON—short for “Autoloaded and Scalable Cannon”—is a 140mm gun developed by Nexter. It sat at the center of the E-MBT, a Franco-German experimental tank unveiled at Eurosatory 2022.
Putting ASCALON onto the Leopard 2 A-RC 3.0 platform effectively merges two development tracks KNDS has been running in parallel for years: French-led work on a next-generation main gun and German-led work on a new Leopard-based architecture with a remotely operated turret.
MGCS is still searching for its final shape
MGCS, officially launched by Paris and Berlin in 2017, has been dogged by delays and uncertainty. A line repeated in parliamentary hearings captures the official posture: the future tank “will be neither a new Leopard tank nor a new Leclerc tank.”
That formulation helps preserve the Franco-German political balance, but it leaves the core industrial question unresolved: what physical base should MGCS be built on?
The ASCALON-on-Leopard 2 A-RC 3.0 combination offers a partial answer. It suggests a vehicle that leans on the industrial maturity of the German platform—widely produced and exported—while integrating a new-generation main armament carried by the French side. In that logic, Berlin provides the chassis and Paris provides the main gun.
But the trade-off is structural. If the Leopard 2 becomes the foundation, France’s industrial share would mechanically shrink to the benefit of Rheinmetall. For the French Army, which for years defended the case for a larger Leclerc force, that would mark a meaningful shift in philosophy.
The Leopard 2 A-RC 3.0: a technology demonstrator built to preview MGCS concepts
The Leopard 2 A-RC 3.0 is not a production tank. It’s a technology demonstrator designed by KNDS Deutschland to test next-generation concepts: a remotely operated turret, a reduced crew, and automated loading.
A turret with no crew inside could, in theory, cut the crew to two or three from four on a conventional tank, while lowering the vehicle’s profile.
Pairing that architecture with a 140mm ASCALON—rather than the Leopard 2’s standard 120mm L55—would deliver more firepower than tanks currently fielded across NATO, according to the article. Nexter studies have found the 140mm is intended to engage armored targets that the 120mm can no longer be guaranteed to neutralize, given the evolution of active and reactive armor—developments observed in particular on Russian platforms in Ukraine.
The low-key nature of the integration—without an official program announcement or firm order—fits KNDS’s usual demonstrator strategy: push the engineering forward before Franco-German political negotiations lock in a binding framework. That way, the group has a concrete industrial argument ready when MGCS talks resume at a serious pace.
What the ASCALON integration suggests about MGCS
More firepower: ASCALON’s 140mm caliber goes beyond the Leopard 2’s standard 120mm, aiming to defeat active-protection-equipped armor that today’s gun can’t reliably neutralize.
A delicate industrial balance: A French main gun on a German platform reflects a complementary approach—but raises questions about how much industrial work each nation ultimately retains.
Demonstrator-first strategy: KNDS appears to be advancing technically before MGCS’s political framework is finalized, strengthening its hand for future Franco-German negotiations.
The Leclerc’s future remains uncertain: With Leclerc production stopped, a Leopard-based MGCS would represent a notable shift from the original ambition of industrial parity.
No firm program heading yet: Despite its 2017 launch, MGCS remains delayed, and the official definition of the future tank is still open—between Leclerc heritage, Leopard heritage, or a wholly new architecture.
KNDS as the de facto broker between Paris and Berlin
KNDS sits in an awkward but powerful position. It is a key interlocutor for both governments: it produces the Leclerc XLR for the French Army and modernizes the Leopard 2 for Germany’s Bundeswehr and many export customers. That makes it the only industrial player able to propose a credible technical convergence between the two national armored traditions.
That centrality also carries political risk. If the MGCS solution ends up looking too much like a Leopard 2 in its geometry, Paris could conclude the program structurally tilts toward Germany. Capability arguments cut the other way: with Leclerc production ended, it cannot serve as a credible basis for a series program without massive investment in a new industrial line.
The ASCALON-on-A-RC 3.0 pairing may be the pragmatic answer to that equation: give France ownership of the main armament—the most visible component and the one most decisive for lethality—while relying on a platform whose industrial ecosystem already exists. If that path is confirmed in MGCS’s next definition phases, it would mark a notable shift from the original ambition of a truly bilateral program built on industrial parity.
ASCALON and MGCS: key facts
KNDS has integrated the 140mm ASCALON cannon onto the Leopard 2 A-RC 3.0 chassis, which features a remotely operated turret.
MGCS is intended to replace France’s Leclerc and Germany’s Leopard 2 around the 2040s.
ASCALON was developed by Nexter and shown on the Franco-German E-MBT at Eurosatory 2022.
The Leopard 2 A-RC 3.0 is a technology demonstrator, not a production tank.
KNDS was formed from the rapprochement between Nexter (France) and Rheinmetall-Landsysteme (Germany).
Sources
OPEX360 (June 24, 2024): “Pour le général [2S] Charles Beaudouin, l’armée de Terre a besoin d’une force Leclerc plus importante”
OPEX360 (October 24, 2023): “Pour le ministère des Armées, l’option du char franco-allemand E-MBT se doit d’être considérée”
