Request: Leopard 2A4 Revo's 120mm replacement with 87-140mm guns

[Boklinsman 2]

A long time ago, I saw a picture in a post on the forum, which showed the Leopard 2A4 Revo can be equipped with four types of main guns, namely L/44 120mm, L/55 120mm, L/51 130mm and RUAG NPzK 140mm.

I would like to ask the bigwigs to do me a favor and replace the 87-140's 140mm gun with the Leopard 2A4 Revo's L/44 120mm gun

The main question is whether the main gun of the Leopard 2A4 Revo is A4 or A5? Because a long time ago there was a post about the Vickers Mk.7 that the main gun was replaced, resulting in the A5 barrel model being gone

I'm afraid that the main guns of the A4, evo and Revo are the same