Sweet. New acronym for me to use. IFAK.
Yep, I keep an IFAK in my cargo pocket of my pants, and a good home-built FAK (not a Johnson and Johnson POS with 4 bandaids and that crappy 1/4" wide athletic tape... one for dealing with problems more varied than an 8 year old with a skateboarding boo-boo) in my truck. BOK is variable in location, which probably isn't a good thing. It's with "my gear pile," wherever that may be. But I don't bring it to the public range. I leave it in the truck and rely upon the IFAK.
It's a small kit for immediately beginning to treat an injury typically involving major blood loss.
Any other type of injury can usually await the arrival of a relatively close full FAK (shock, broken bone, heat stroke, heat exhaustion, insect or snake bite, blisters, etc).
BSI - nitrile gloves
ACE-wrap compression bandage - tourniquet/pressure tool and also useful for joint injuries
Celox-treated trauma bandage - soak blood, induce clotting
triangle bandage - soak blood or tie down an extremity for a sling or brace
4 inch gauze pads - soak blood, induce clotting
2" gauze roll - soak blood, secure a bandage
4" gauze roll - soak blood, secure a bandage
Toilet paper - it can be used as a last resort as a blood-soaking bandage, but it has other mundane uses and this is a handy place to stow it.
All this fits in a zip-lock sandwich bag with a heavy duty plastic zipper doo-dad on it for easy access and re-sealing.