I find that model to be the most visually appealing of that design family. The 520 looks a bit awkward with second hump in the middle of the receiver, and the 620 looks like it's trying really hard to look like a Model 12. The tang safety on the 530 is an interesting wrinkle, too.
That's a darn nice example of a military version!
That's a darn nice example of a military version!
