For a long time I just used an ammo can and it worked out great lol, I ended up picking up a 5.11 bag a while back and it's actually pretty nice, really depends on what I'm doing as to what's in the bag though, for typical tag along in the truck I keep a 1911, a G17 and a G19 with about 6 mags each and the same for the 1911, bout 500 rds of 147gr 9mm and 150 rds of .45 acp, muffs/gun belt and holsters along with some targets and tape and some very basic tools/cleaner/oil. ..I also keep some extra fibre rods for my sights just in case,
Nice part is the bag itself loaded down like this isn't all that heavy, I have another little tag along bag that I'll use when I don't feel like taking all of this out with me
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