First off my apologies for hi-jacking this thread. but....
I have all these things in here with plenty more room (the blue pads under my AR and around my spare BCG are for leaking oil)
Small cleaning kit, 223/5.56 - 40S&W
Spare parts for AR with Tapco AR multi wrench
10 30rnd AR mags (2 Troy,2 Lancer, 2 GI, 2 Tapco, 1 Pmag, 1 CAA mag (with round counter) which is 300 rounds if fully loaded and I could fit 2-3 more mags in the pouches )
Small Med kit
Emergency fire starter
Emergency blankets (2 more not pictured)
Big ass knife (lol)
2 military surplus ammo pouches
not pictured currently in another bag but will fit here no problem, 1 emergency tent, 1 hatchet, clothing and spare boots.
I will be adding to and switching things on this list until I get it just right but my overall experience with this bag has been great very sturdy and well made I have carried it into the woods on hikes and on extended range trips fully loaded it has held up very well.