Every range bag should have a first aid kit, that’s a given. But think about it, what could be needed at the range. Sure, someone might get a splinter from the bench, or cut themselves on something. But what if something more unthinkable happened? A ricochet, a catastrophic weapon malfunction, or that noob who turns around to ask a question and pulls the trigger. What then? Standing there unable to offer any assistance is the worst feeling you could imagine. That’s why my range bag has one of these kits in it. I pray I never need it, but will thank God if I do. In addition to this I also carry packets of quick clot in my bag, in a pocket of my plate carriers, in the glove box of my Jeep.
Lastly, get some first responder training, even if it’s just the basics.