Granelli Audio Labs G5790

It's a SM57. And the angled mod is very well built. Looks original.

But I'm not sure it is needed. Sure, you save a couple of centimeters length which can be good in a crowded drum kit. But there are other alternatives like Audix i5 or a ton of other mics that needs even less space. I guess if you are a 57 junkie and really need them on your drums, this is a slight improvement over the original. But on the other hand at a pretty hefty price increase.

It's the same quality and reliability as the Shure SM57 offers, plus now you get to mic up your snare drum without the microphone being in the way.