https://smile.amazon.com/dp/B000H7N26A/ref=cm_sw_r_cp_apa_glt_fabc_1EVB5TFJCH2H7MD6TEZS
Kind've surprised nobody mentioned bear spray yet. Surprisingly effective against bears when compared to any handgun.
OP is apparently more worried about people than wildlife as a threat, per post #22. Hope they post where they're actually camping as I would like to avoid it if people are that much more of a threat there.