The gut is notoriously one of the most painful places you can get shot. It’s fairly “safe” overall with antibiotics and prompt medical intervention, although it would carry a higher risk of infection. Plus hitting a kidney seems like a pretty severe complication. So I think I’d rather take the arm.

Edit: Plus possibility of hitting the spine. oof, ouch, owie

Lol no. Very no. Getting gut shot is a wonderful way to die slowly and in agony.