There was a few questions about Staccato's grip.
I'm not a fan of their new, Gen2 grip. It is indeed wider as expected. But, after few hours of research and other Staccato shooters opinions I found the solution.
I bought Gen1 Tactical Grip for C2 with carry option from Extreme Shooters. The original Gen1 is narrower than Gen2 but Extreme Shooters company trim it even more, so size of the grip is almost identical to P-07/09 or P-01.... which is perfect for me.