Sigh...
I'm kinda tired of the trope where the MC is insanely OP but keeps thinking he's below average even though just about everyone around him is always astonished, flabbergasted or whatever.
Hopefully it isn't too prominent as we go on but I don't have too much hope
To be fair, so far they have talked about magicians and non magicians as different races in this series. Seems like the ability to use magic is innate and not an acquired skill. Then again, that might just be the "racism" as to why they speak about it that way
So the mc is clearly unable to fight these guys hand to hand and requires his guns. He has 2 guns and lets be a bit generous and assume each mag holds 21 bullets. He probably won't have more than 3 extra mags per gun + the one already in the guns, especially since he wasn't prepped to fight...