Colt AR-15 (6940) and SIG P226
210 rounds of 5.56 M855 loaded into 7 mags, and 45 rounds of 9MM 127 gr +P+ loaded into 3 mags.
If I'm careless enough, or stupid enough to get into a firefight, I'll be dead before I need more ammo than that.
Might even leave the pistol home and pack a spare canteen instead.
For those who have fought for it, freedom has a taste the protected will never know!
Or at least they did before political correctness