zNSFW

Patriotlibrary

Nicaraguan freedom fighter manual
Improvised weapons from office supplies
Cell phone detonator
Chloroform
Shotshell landmine
Ammo Chart
/k/ teaches you useful (and sometimes dangerous) information! (xpost from /r/Survival)
Metsubushi "eye closer" (xpost from /r/pocketsand)
100 Deadly Skills