Are the tremolo arms on the Silver Sky models interchangeable?

Are the tremolo arms on the Silver Sky models interchangeable?

The tremolo arm on the SE Silver Sky is slightly smaller in diameter than the US Silver Sky tremolo arm, and they are not interchangeable.

Here is the link to the US Silver Sky tremolo arm: Silver Sky Tremolo Arm (Nickel) – PRS Guitars West Street East Accessory Store (prsaccessories.com)